13974237 has 6 divisors (see below), whose sum is σ = 20185022. Its totient is φ = 9316152.

The previous prime is 13974229. The next prime is 13974239. The reversal of 13974237 is 73247931.

It can be written as a sum of positive squares in only one way, i.e., 13351716 + 622521 = 3654^2 + 789^2 .

It is not a de Polignac number, because 13974237 - 2³ = 13974229 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 (13974239) 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, 776338 + ... + 776355.

Almost surely, 2^13974237 is an apocalyptic number.

It is an amenable number.

13974237 is a deficient number, since it is larger than the sum of its proper divisors (6210785).

13974237 is a wasteful number, since it uses less digits than its factorization.

13974237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552699 (or 1552696 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 13974237 is about 3738.2130757890. The cubic root of 13974237 is about 240.8662963652.

The spelling of 13974237 in words is "thirteen million, nine hundred seventy-four thousand, two hundred thirty-seven".