77085084 has 24 divisors (see below), whose sum is σ = 184253328. Its totient is φ = 25068160.

The previous prime is 77085067. The next prime is 77085131. The reversal of 77085084 is 48058077.

It is a super-2 number, since 2×77085084² = 11884220350574112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77847 + ... + 78830.

It is an arithmetic number, because the mean of its divisors is an integer number (7677222).

Almost surely, 2^77085084 is an apocalyptic number.

It is an amenable number.

77085084 is an abundant number, since it is smaller than the sum of its proper divisors (107168244).

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

77085084 is a wasteful number, since it uses less digits than its factorization.

77085084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156725 (or 156723 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 77085084 is about 8779.8111597004. The cubic root of 77085084 is about 425.5887278070.

The spelling of 77085084 in words is "seventy-seven million, eighty-five thousand, eighty-four".