36921885 has 64 divisors (see below), whose sum is σ = 79349760. Its totient is φ = 14158080.

The previous prime is 36921881. The next prime is 36921889. The reversal of 36921885 is 58812963.

It is an interprime number because it is at equal distance from previous prime (36921881) and next prime (36921889).

It is not a de Polignac number, because 36921885 - 2² = 36921881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36921881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13786 + ... + 16244.

It is an arithmetic number, because the mean of its divisors is an integer number (1239840).

Almost surely, 2^36921885 is an apocalyptic number.

36921885 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

36921885 is an abundant number, since it is smaller than the sum of its proper divisors (42427875).

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

36921885 is a wasteful number, since it uses less digits than its factorization.

36921885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its digits is 103680, while the sum is 42.

The square root of 36921885 is about 6076.3381242324. The cubic root of 36921885 is about 332.9875185828.

The spelling of 36921885 in words is "thirty-six million, nine hundred twenty-one thousand, eight hundred eighty-five".