77018004 has 54 divisors (see below), whose sum is σ = 226474794. Its totient is φ = 22004640.

The previous prime is 77017999. The next prime is 77018021. The reversal of 77018004 is 40081077.

It can be written as a sum of positive squares in only one way, i.e., 74857104 + 2160900 = 8652^2 + 1470^2 .

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 20067 + ... + 23594.

Almost surely, 2^77018004 is an apocalyptic number.

It is an amenable number.

77018004 is an abundant number, since it is smaller than the sum of its proper divisors (149456790).

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

77018004 is a wasteful number, since it uses less digits than its factorization.

77018004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43685 (or 43673 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 77018004 is about 8775.9902005415. The cubic root of 77018004 is about 425.4652418465.

The spelling of 77018004 in words is "seventy-seven million, eighteen thousand, four".