13992273 has 6 divisors (see below), whose sum is σ = 20211074. Its totient is φ = 9328176.

The previous prime is 13992271. The next prime is 13992281. The reversal of 13992273 is 37229931.

It can be written as a sum of positive squares in only one way, i.e., 7273809 + 6718464 = 2697^2 + 2592^2 .

It is not a de Polignac number, because 13992273 - 2¹ = 13992271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13992271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 777340 + ... + 777357.

Almost surely, 2^13992273 is an apocalyptic number.

It is an amenable number.

13992273 is a deficient number, since it is larger than the sum of its proper divisors (6218801).

13992273 is a wasteful number, since it uses less digits than its factorization.

13992273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554703 (or 1554700 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 13992273 is about 3740.6246804511. The cubic root of 13992273 is about 240.9698773781.

The spelling of 13992273 in words is "thirteen million, nine hundred ninety-two thousand, two hundred seventy-three".