37999808 has 84 divisors (see below), whose sum is σ = 94859856. Its totient is φ = 14784000.

The previous prime is 37999757. The next prime is 37999813. The reversal of 37999808 is 80899973.

It is a self number, because there is not a number n which added to its sum of digits gives 37999808.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53858 + ... + 54558.

It is an arithmetic number, because the mean of its divisors is an integer number (1129284).

Almost surely, 2^37999808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 37999808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47429928).

37999808 is an abundant number, since it is smaller than the sum of its proper divisors (56860048).

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

37999808 is a wasteful number, since it uses less digits than its factorization.

37999808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 37999808 is about 6164.3984296929. The cubic root of 37999808 is about 336.1969744515.

The spelling of 37999808 in words is "thirty-seven million, nine hundred ninety-nine thousand, eight hundred eight".