12815396 has 24 divisors (see below), whose sum is σ = 24990336. Its totient is φ = 5700320.

The previous prime is 12815353. The next prime is 12815417. The reversal of 12815396 is 69351821.

12815396 = T₃₇₃ + T₃₇₄ + ... + T₅₀₄.

12815396 = 499² + 500² + ... + 545².

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, 1031 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (1041264).

Almost surely, 2^12815396 is an apocalyptic number.

It is an amenable number.

12815396 is a deficient number, since it is larger than the sum of its proper divisors (12174940).

12815396 is a wasteful number, since it uses less digits than its factorization.

12815396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259 (or 6257 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 12815396 is about 3579.8597737900. The cubic root of 12815396 is about 234.0151693480.

The spelling of 12815396 in words is "twelve million, eight hundred fifteen thousand, three hundred ninety-six".