77472016 has 20 divisors (see below), whose sum is σ = 150388812. Its totient is φ = 38662016.

The previous prime is 77471983. The next prime is 77472037. The reversal of 77472016 is 61027477.

It can be written as a sum of positive squares in 2 ways, for example, as 5290000 + 72182016 = 2300^2 + 8496^2 .

It is a congruent number.

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, 4566 + ... + 13258.

Almost surely, 2^77472016 is an apocalyptic number.

It is an amenable number.

77472016 is a deficient number, since it is larger than the sum of its proper divisors (72916796).

77472016 is a wasteful number, since it uses less digits than its factorization.

77472016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9258 (or 9252 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 77472016 is about 8801.8189029314. The cubic root of 77472016 is about 426.2996268360.

The spelling of 77472016 in words is "seventy-seven million, four hundred seventy-two thousand, sixteen".