37998725 has 18 divisors (see below), whose sum is σ = 47908950. Its totient is φ = 29896000.

The previous prime is 37998707. The next prime is 37998749. The reversal of 37998725 is 52789973.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 1044484 + 36954241 = 1022^2 + 6079^2 .

It is not a de Polignac number, because 37998725 - 2¹⁴ = 37982341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 254951 + ... + 255099.

Almost surely, 2^37998725 is an apocalyptic number.

It is an amenable number.

37998725 is a deficient number, since it is larger than the sum of its proper divisors (9910225).

37998725 is a wasteful number, since it uses less digits than its factorization.

37998725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 255 counting only the distinct ones).

The product of its digits is 952560, while the sum is 50.

The square root of 37998725 is about 6164.3105859455. The cubic root of 37998725 is about 336.1937805338.

The spelling of 37998725 in words is "thirty-seven million, nine hundred ninety-eight thousand, seven hundred twenty-five".