77790116 has 12 divisors (see below), whose sum is σ = 136578288. Its totient is φ = 38767752.

The previous prime is 77790109. The next prime is 77790121. The reversal of 77790116 is 61109777.

It is a self number, because there is not a number n which added to its sum of digits gives 77790116.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30446 + ... + 32901.

It is an arithmetic number, because the mean of its divisors is an integer number (11381524).

Almost surely, 2^77790116 is an apocalyptic number.

It is an amenable number.

77790116 is a deficient number, since it is larger than the sum of its proper divisors (58788172).

77790116 is a wasteful number, since it uses less digits than its factorization.

77790116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63658 (or 63656 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 38.

The square root of 77790116 is about 8819.8705205916. The cubic root of 77790116 is about 426.8822919981.

The spelling of 77790116 in words is "seventy-seven million, seven hundred ninety thousand, one hundred sixteen".