13992586 has 16 divisors (see below), whose sum is σ = 21700584. Its totient is φ = 6761664.

The previous prime is 13992571. The next prime is 13992599. The reversal of 13992586 is 68529931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11799225 + 2193361 = 3435^2 + 1481^2 .

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, 12256 + ... + 13348.

Almost surely, 2^13992586 is an apocalyptic number.

13992586 is a deficient number, since it is larger than the sum of its proper divisors (7707998).

13992586 is a wasteful number, since it uses less digits than its factorization.

13992586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305.

The product of its digits is 116640, while the sum is 43.

The square root of 13992586 is about 3740.6665181489. Note that the first 3 decimals coincide. The cubic root of 13992586 is about 240.9716741558.

The spelling of 13992586 in words is "thirteen million, nine hundred ninety-two thousand, five hundred eighty-six".