77083980 has 48 divisors (see below), whose sum is σ = 222802944. Its totient is φ = 19892160.

The previous prime is 77083961. The next prime is 77083999. The reversal of 77083980 is 8938077.

It is an interprime number because it is at equal distance from previous prime (77083961) and next prime (77083999).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18862 + ... + 22581.

It is an arithmetic number, because the mean of its divisors is an integer number (4641728).

Almost surely, 2^77083980 is an apocalyptic number.

It is an amenable number.

77083980 is an abundant number, since it is smaller than the sum of its proper divisors (145718964).

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

77083980 is a wasteful number, since it uses less digits than its factorization.

77083980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41486 (or 41484 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 77083980 is about 8779.7482879636. The cubic root of 77083980 is about 425.5866960598.

The spelling of 77083980 in words is "seventy-seven million, eighty-three thousand, nine hundred eighty".