12957910 has 32 divisors (see below), whose sum is σ = 28226880. Its totient is φ = 4180992.

The previous prime is 12957869. The next prime is 12957911. The reversal of 12957910 is 1975921.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12957911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4255 + ... + 6634.

It is an arithmetic number, because the mean of its divisors is an integer number (882090).

Almost surely, 2^12957910 is an apocalyptic number.

12957910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12957910 is an abundant number, since it is smaller than the sum of its proper divisors (15268970).

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

12957910 is a wasteful number, since it uses less digits than its factorization.

12957910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10920.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 12957910 is about 3599.7097105183. The cubic root of 12957910 is about 234.8794311349.

The spelling of 12957910 in words is "twelve million, nine hundred fifty-seven thousand, nine hundred ten".