12764257 has 16 divisors (see below), whose sum is σ = 14788800. Its totient is φ = 10895040.

The previous prime is 12764251. The next prime is 12764261. The reversal of 12764257 is 75246721.

It is a cyclic number.

It is not a de Polignac number, because 12764257 - 2¹¹ = 12762209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12764251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32619 + ... + 33007.

It is an arithmetic number, because the mean of its divisors is an integer number (924300).

Almost surely, 2^12764257 is an apocalyptic number.

It is an amenable number.

12764257 is a deficient number, since it is larger than the sum of its proper divisors (2024543).

12764257 is a wasteful number, since it uses less digits than its factorization.

12764257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its digits is 23520, while the sum is 34.

The square root of 12764257 is about 3572.7100358132. The cubic root of 12764257 is about 233.7034803095.

The spelling of 12764257 in words is "twelve million, seven hundred sixty-four thousand, two hundred fifty-seven".