36991952 has 20 divisors (see below), whose sum is σ = 71766240. Its totient is φ = 18471648.

The previous prime is 36991951. The next prime is 36991967. The reversal of 36991952 is 25919963.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36991951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22949 + ... + 24507.

It is an arithmetic number, because the mean of its divisors is an integer number (3588312).

Almost surely, 2^36991952 is an apocalyptic number.

It is an amenable number.

36991952 is a deficient number, since it is larger than the sum of its proper divisors (34774288).

36991952 is a wasteful number, since it uses less digits than its factorization.

36991952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050 (or 3044 counting only the distinct ones).

The product of its digits is 131220, while the sum is 44.

The square root of 36991952 is about 6082.1009527958. The cubic root of 36991952 is about 333.1980233032.

The spelling of 36991952 in words is "thirty-six million, nine hundred ninety-one thousand, nine hundred fifty-two".