37993668 has 24 divisors (see below), whose sum is σ = 89332320. Its totient is φ = 12567360.

The previous prime is 37993643. The next prime is 37993687. The reversal of 37993668 is 86639973.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 37993668.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10513 + ... + 13656.

It is an arithmetic number, because the mean of its divisors is an integer number (3722180).

Almost surely, 2^37993668 is an apocalyptic number.

It is an amenable number.

37993668 is an abundant number, since it is smaller than the sum of its proper divisors (51338652).

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

37993668 is a wasteful number, since it uses less digits than its factorization.

37993668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24307 (or 24305 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 51.

The square root of 37993668 is about 6163.9003885527. The cubic root of 37993668 is about 336.1788659336.

The spelling of 37993668 in words is "thirty-seven million, nine hundred ninety-three thousand, six hundred sixty-eight".