12277897 has 8 divisors (see below), whose sum is σ = 12534912. Its totient is φ = 12022800.

The previous prime is 12277877. The next prime is 12277913. The reversal of 12277897 is 79877221.

It is a happy number.

12277897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12277897 - 2²³ = 3889289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12277807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26058 + ... + 26524.

It is an arithmetic number, because the mean of its divisors is an integer number (1566864).

Almost surely, 2^12277897 is an apocalyptic number.

It is an amenable number.

12277897 is a deficient number, since it is larger than the sum of its proper divisors (257015).

12277897 is an equidigital number, since it uses as much as digits as its factorization.

12277897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959.

The product of its digits is 98784, while the sum is 43.

The square root of 12277897 is about 3503.9830193652. The cubic root of 12277897 is about 230.6966715157.

The spelling of 12277897 in words is "twelve million, two hundred seventy-seven thousand, eight hundred ninety-seven".