13992597 has 6 divisors (see below), whose sum is σ = 20211542. Its totient is φ = 9328392.

The previous prime is 13992571. The next prime is 13992599. The reversal of 13992597 is 79529931.

It is a happy number.

13992597 is a `hidden beast` number, since 1 + 399 + 259 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12574116 + 1418481 = 3546^2 + 1191^2 .

It is not a de Polignac number, because 13992597 - 2¹⁰ = 13991573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13992599) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 777358 + ... + 777375.

Almost surely, 2^13992597 is an apocalyptic number.

It is an amenable number.

13992597 is a deficient number, since it is larger than the sum of its proper divisors (6218945).

13992597 is a wasteful number, since it uses less digits than its factorization.

13992597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554739 (or 1554736 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 13992597 is about 3740.6679884748. The cubic root of 13992597 is about 240.9717373008.

The spelling of 13992597 in words is "thirteen million, nine hundred ninety-two thousand, five hundred ninety-seven".