12957306 has 8 divisors (see below), whose sum is σ = 25914624. Its totient is φ = 4319100.

The previous prime is 12957293. The next prime is 12957311. The reversal of 12957306 is 60375921.

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

12957306 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079770 + ... + 1079781.

It is an arithmetic number, because the mean of its divisors is an integer number (3239328).

Almost surely, 2^12957306 is an apocalyptic number.

12957306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12957306 is a wasteful number, since it uses less digits than its factorization.

12957306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159556.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 12957306 is about 3599.6258138868. The cubic root of 12957306 is about 234.8757816425.

The spelling of 12957306 in words is "twelve million, nine hundred fifty-seven thousand, three hundred six".