77465216 has 32 divisors (see below), whose sum is σ = 154738080. Its totient is φ = 38629120.

The previous prime is 77465203. The next prime is 77465221. The reversal of 77465216 is 61256477.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 77465216.

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, 74621 + ... + 75651.

It is an arithmetic number, because the mean of its divisors is an integer number (4835565).

Almost surely, 2^77465216 is an apocalyptic number.

It is an amenable number.

77465216 is a deficient number, since it is larger than the sum of its proper divisors (77272864).

77465216 is a wasteful number, since it uses less digits than its factorization.

77465216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 1620 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 77465216 is about 8801.4326106606. The cubic root of 77465216 is about 426.2871538493.

The spelling of 77465216 in words is "seventy-seven million, four hundred sixty-five thousand, two hundred sixteen".