77076680 has 64 divisors (see below), whose sum is σ = 182304000. Its totient is φ = 29272320.

The previous prime is 77076667. The next prime is 77076697. The reversal of 77076680 is 8667077.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182870 + ... + 183290.

It is an arithmetic number, because the mean of its divisors is an integer number (2848500).

Almost surely, 2^77076680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77076680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91152000).

77076680 is an abundant number, since it is smaller than the sum of its proper divisors (105227320).

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

77076680 is a wasteful number, since it uses less digits than its factorization.

77076680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 77076680 is about 8779.3325486622. The cubic root of 77076680 is about 425.5732610116.

The spelling of 77076680 in words is "seventy-seven million, seventy-six thousand, six hundred eighty".