77395216 has 10 divisors (see below), whose sum is σ = 149953262. Its totient is φ = 38697600.

The previous prime is 77395181. The next prime is 77395243. The reversal of 77395216 is 61259377.

It can be written as a sum of positive squares in only one way, i.e., 77369616 + 25600 = 8796^2 + 160^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2418585 + ... + 2418616.

Almost surely, 2^77395216 is an apocalyptic number.

It is an amenable number.

77395216 is a deficient number, since it is larger than the sum of its proper divisors (72558046).

77395216 is a wasteful number, since it uses less digits than its factorization.

77395216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837209 (or 4837203 counting only the distinct ones).

The product of its digits is 79380, while the sum is 40.

The square root of 77395216 is about 8797.4550865577. The cubic root of 77395216 is about 426.1587130041.

The spelling of 77395216 in words is "seventy-seven million, three hundred ninety-five thousand, two hundred sixteen".