12977494 has 16 divisors (see below), whose sum is σ = 21697200. Its totient is φ = 5785344.

The previous prime is 12977479. The next prime is 12977501. The reversal of 12977494 is 49477921.

It is a self number, because there is not a number n which added to its sum of digits gives 12977494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9399 + ... + 10690.

It is an arithmetic number, because the mean of its divisors is an integer number (1356075).

Almost surely, 2^12977494 is an apocalyptic number.

12977494 is a deficient number, since it is larger than the sum of its proper divisors (8719706).

12977494 is a wasteful number, since it uses less digits than its factorization.

12977494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20127.

The product of its digits is 127008, while the sum is 43.

The square root of 12977494 is about 3602.4289028376. The cubic root of 12977494 is about 234.9977002944.

The spelling of 12977494 in words is "twelve million, nine hundred seventy-seven thousand, four hundred ninety-four".