77120416 has 24 divisors (see below), whose sum is σ = 152098884. Its totient is φ = 38492160.

The previous prime is 77120399. The next prime is 77120419. The reversal of 77120416 is 61402177.

It can be written as a sum of positive squares in 2 ways, for example, as 75690000 + 1430416 = 8700^2 + 1196^2 .

It is not an unprimeable number, because it can be changed into a prime (77120419) 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, 19746 + ... + 23326.

Almost surely, 2^77120416 is an apocalyptic number.

It is an amenable number.

77120416 is a deficient number, since it is larger than the sum of its proper divisors (74978468).

77120416 is a wasteful number, since it uses less digits than its factorization.

77120416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264 (or 4256 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 77120416 is about 8781.8230453591. The cubic root of 77120416 is about 425.6537408348.

The spelling of 77120416 in words is "seventy-seven million, one hundred twenty thousand, four hundred sixteen".