12090877 has 4 divisors (see below), whose sum is σ = 12129820. Its totient is φ = 12051936.

The previous prime is 12090863. The next prime is 12090889. The reversal of 12090877 is 77809021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 11909401 = 426^2 + 3451^2 .

It is a cyclic number.

It is not a de Polignac number, because 12090877 - 2²³ = 3702269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12090817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19002 + ... + 19627.

It is an arithmetic number, because the mean of its divisors is an integer number (3032455).

Almost surely, 2^12090877 is an apocalyptic number.

It is an amenable number.

12090877 is a deficient number, since it is larger than the sum of its proper divisors (38943).

12090877 is an equidigital number, since it uses as much as digits as its factorization.

12090877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38942.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 12090877 is about 3477.1938398657. The cubic root of 12090877 is about 229.5193301262.

Adding to 12090877 its reverse (77809021), we get a palindrome (89899898).

The spelling of 12090877 in words is "twelve million, ninety thousand, eight hundred seventy-seven".