77366916 has 54 divisors (see below), whose sum is σ = 214973486. Its totient is φ = 23443200.

The previous prime is 77366869. The next prime is 77366921. The reversal of 77366916 is 61966377.

It can be written as a sum of positive squares in only one way, i.e., 61685316 + 15681600 = 7854^2 + 3960^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4525 + ... + 13236.

Almost surely, 2^77366916 is an apocalyptic number.

It is an amenable number.

77366916 is an abundant number, since it is smaller than the sum of its proper divisors (137606570).

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

77366916 is a wasteful number, since it uses less digits than its factorization.

77366916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17793 (or 17777 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 77366916 is about 8795.8465198069. The cubic root of 77366916 is about 426.1067642211.

The spelling of 77366916 in words is "seventy-seven million, three hundred sixty-six thousand, nine hundred sixteen".