77288716 has 12 divisors (see below), whose sum is σ = 138401032. Its totient is φ = 37745568.

The previous prime is 77288711. The next prime is 77288719. The reversal of 77288716 is 61788277.

It is not an unprimeable number, because it can be changed into a prime (77288711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224505 + ... + 224848.

Almost surely, 2^77288716 is an apocalyptic number.

It is an amenable number.

77288716 is a deficient number, since it is larger than the sum of its proper divisors (61112316).

77288716 is a wasteful number, since it uses less digits than its factorization.

77288716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449400 (or 449398 counting only the distinct ones).

The product of its digits is 263424, while the sum is 46.

The square root of 77288716 is about 8791.4001160225. The cubic root of 77288716 is about 425.9631508018.

The spelling of 77288716 in words is "seventy-seven million, two hundred eighty-eight thousand, seven hundred sixteen".