12957904 has 10 divisors (see below), whose sum is σ = 25105970. Its totient is φ = 6478944.

The previous prime is 12957869. The next prime is 12957911. The reversal of 12957904 is 40975921.

It can be written as a sum of positive squares in only one way, i.e., 8714304 + 4243600 = 2952^2 + 2060^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404919 + ... + 404950.

It is an arithmetic number, because the mean of its divisors is an integer number (2510597).

Almost surely, 2^12957904 is an apocalyptic number.

It is an amenable number.

12957904 is a deficient number, since it is larger than the sum of its proper divisors (12148066).

12957904 is an equidigital number, since it uses as much as digits as its factorization.

12957904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809877 (or 809871 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 12957904 is about 3599.7088771177. The cubic root of 12957904 is about 234.8793948822.

It can be divided in two parts, 12957 and 904, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 12957904 in words is "twelve million, nine hundred fifty-seven thousand, nine hundred four".