83786980 has 24 divisors (see below), whose sum is σ = 177343488. Its totient is φ = 33249888.

The previous prime is 83786971. The next prime is 83787001. The reversal of 83786980 is 8968738.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13954 + ... + 19033.

It is an arithmetic number, because the mean of its divisors is an integer number (7389312).

Almost surely, 2^83786980 is an apocalyptic number.

It is an amenable number.

83786980 is an abundant number, since it is smaller than the sum of its proper divisors (93556508).

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

83786980 is a wasteful number, since it uses less digits than its factorization.

83786980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33123 (or 33121 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 83786980 is about 9153.5228191118. The cubic root of 83786980 is about 437.5813922038.

The spelling of 83786980 in words is "eighty-three million, seven hundred eighty-six thousand, nine hundred eighty".