13997292 has 12 divisors (see below), whose sum is σ = 32660376. Its totient is φ = 4665760.

The previous prime is 13997279. The next prime is 13997303. The reversal of 13997292 is 29279931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583209 + ... + 583232.

It is an arithmetic number, because the mean of its divisors is an integer number (2721698).

Almost surely, 2^13997292 is an apocalyptic number.

13997292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13997292 is an abundant number, since it is smaller than the sum of its proper divisors (18663084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13997292 is a wasteful number, since it uses less digits than its factorization.

13997292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166448 (or 1166446 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 13997292 is about 3741.2954975516. The cubic root of 13997292 is about 240.9986857363.

The spelling of 13997292 in words is "thirteen million, nine hundred ninety-seven thousand, two hundred ninety-two".