77045004 has 18 divisors (see below), whose sum is σ = 194752740. Its totient is φ = 25681656.

The previous prime is 77044997. The next prime is 77045041. The reversal of 77045004 is 40054077.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1070034 + ... + 1070105.

Almost surely, 2^77045004 is an apocalyptic number.

It is an amenable number.

77045004 is an abundant number, since it is smaller than the sum of its proper divisors (117707736).

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

77045004 is a wasteful number, since it uses less digits than its factorization.

77045004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140149 (or 2140144 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 77045004 is about 8777.5283536996. The cubic root of 77045004 is about 425.5149541164.

The spelling of 77045004 in words is "seventy-seven million, forty-five thousand, four".