12757808 has 20 divisors (see below), whose sum is σ = 28249680. Its totient is φ = 5467584.

The previous prime is 12757807. The next prime is 12757861. The reversal of 12757808 is 80875721.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12757807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56843 + ... + 57066.

It is an arithmetic number, because the mean of its divisors is an integer number (1412484).

Almost surely, 2^12757808 is an apocalyptic number.

It is an amenable number.

12757808 is an abundant number, since it is smaller than the sum of its proper divisors (15491872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12757808 is a wasteful number, since it uses less digits than its factorization.

12757808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113924 (or 113918 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 12757808 is about 3571.8073856243. The cubic root of 12757808 is about 233.6641149776.

The spelling of 12757808 in words is "twelve million, seven hundred fifty-seven thousand, eight hundred eight".