12770077 has 4 divisors (see below), whose sum is σ = 13521276. Its totient is φ = 12018880.

The previous prime is 12770059. The next prime is 12770089. The reversal of 12770077 is 77007721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77007721 = 7 ⋅11001103.

It can be written as a sum of positive squares in 2 ways, for example, as 11758041 + 1012036 = 3429^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 12770077 - 2⁷ = 12769949 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375574 + ... + 375607.

It is an arithmetic number, because the mean of its divisors is an integer number (3380319).

Almost surely, 2^12770077 is an apocalyptic number.

12770077 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12770077 is a deficient number, since it is larger than the sum of its proper divisors (751199).

12770077 is an equidigital number, since it uses as much as digits as its factorization.

12770077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751198.

The product of its (nonzero) digits is 4802, while the sum is 31.

The square root of 12770077 is about 3573.5244507349. The cubic root of 12770077 is about 233.7389947825.

Adding to 12770077 its reverse (77007721), we get a palindrome (89777798).

The spelling of 12770077 in words is "twelve million, seven hundred seventy thousand, seventy-seven".