77053768 has 24 divisors (see below), whose sum is σ = 158805990. Its totient is φ = 35024000.

The previous prime is 77053733. The next prime is 77053771. The reversal of 77053768 is 86735077.

It can be written as a sum of positive squares in only one way, i.e., 77053284 + 484 = 8778^2 + 22^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38833 + ... + 40768.

Almost surely, 2^77053768 is an apocalyptic number.

It is an amenable number.

77053768 is an abundant number, since it is smaller than the sum of its proper divisors (81752222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77053768 is a wasteful number, since it uses less digits than its factorization.

77053768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79629 (or 79614 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 77053768 is about 8778.0275688790. The cubic root of 77053768 is about 425.5310878541.

The spelling of 77053768 in words is "seventy-seven million, fifty-three thousand, seven hundred sixty-eight".