36861980 has 12 divisors (see below), whose sum is σ = 77410200. Its totient is φ = 14744784.

The previous prime is 36861971. The next prime is 36861983. The reversal of 36861980 is 8916863.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36861983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921530 + ... + 921569.

It is an arithmetic number, because the mean of its divisors is an integer number (6450850).

Almost surely, 2^36861980 is an apocalyptic number.

It is an amenable number.

36861980 is an abundant number, since it is smaller than the sum of its proper divisors (40548220).

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

36861980 is a wasteful number, since it uses less digits than its factorization.

36861980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843108 (or 1843106 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 36861980 is about 6071.4067562633. The cubic root of 36861980 is about 332.8073326286.

The spelling of 36861980 in words is "thirty-six million, eight hundred sixty-one thousand, nine hundred eighty".