12979862 has 16 divisors (see below), whose sum is σ = 22794912. Its totient is φ = 5426880.

The previous prime is 12979847. The next prime is 12979877. The reversal of 12979862 is 26897921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12979847) and next prime (12979877).

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 7 ways as a sum of consecutive naturals, for example, 10733 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (1424682).

Almost surely, 2^12979862 is an apocalyptic number.

12979862 is a deficient number, since it is larger than the sum of its proper divisors (9815050).

12979862 is a wasteful number, since it uses less digits than its factorization.

12979862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22663.

The product of its digits is 108864, while the sum is 44.

The square root of 12979862 is about 3602.7575549848. The cubic root of 12979862 is about 235.0119927485.

The spelling of 12979862 in words is "twelve million, nine hundred seventy-nine thousand, eight hundred sixty-two".