77676970 has 32 divisors (see below), whose sum is σ = 160465536. Its totient is φ = 26520000.

The previous prime is 77676943. The next prime is 77676983. The reversal of 77676970 is 7967677.

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, 15360 + ... + 19780.

It is an arithmetic number, because the mean of its divisors is an integer number (5014548).

Almost surely, 2^77676970 is an apocalyptic number.

77676970 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77676970 is an abundant number, since it is smaller than the sum of its proper divisors (82788566).

77676970 is a wasteful number, since it uses less digits than its factorization.

77676970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686.

The product of its (nonzero) digits is 777924, while the sum is 49.

The square root of 77676970 is about 8813.4539200021. The cubic root of 77676970 is about 426.6752243021.

The spelling of 77676970 in words is "seventy-seven million, six hundred seventy-six thousand, nine hundred seventy".