12979406 has 32 divisors (see below), whose sum is σ = 22457088. Its totient is φ = 5568640.

The previous prime is 12979399. The next prime is 12979423. The reversal of 12979406 is 60497921.

It is a super-2 number, since 2×12979406² = 336929960225672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12979406.

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 in 15 ways as a sum of consecutive naturals, for example, 57065 + ... + 57291.

It is an arithmetic number, because the mean of its divisors is an integer number (701784).

Almost surely, 2^12979406 is an apocalyptic number.

12979406 is a deficient number, since it is larger than the sum of its proper divisors (9477682).

12979406 is a wasteful number, since it uses less digits than its factorization.

12979406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 12979406 is about 3602.6942695710. The cubic root of 12979406 is about 235.0092406205.

The spelling of 12979406 in words is "twelve million, nine hundred seventy-nine thousand, four hundred six".