77107252 has 12 divisors (see below), whose sum is σ = 135075556. Its totient is φ = 38514240.

The previous prime is 77107241. The next prime is 77107279. The reversal of 77107252 is 25270177.

It can be written as a sum of positive squares in 2 ways, for example, as 42954916 + 34152336 = 6554^2 + 5844^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 5199 + ... + 13462.

Almost surely, 2^77107252 is an apocalyptic number.

It is an amenable number.

77107252 is a deficient number, since it is larger than the sum of its proper divisors (57968304).

77107252 is a wasteful number, since it uses less digits than its factorization.

77107252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19698 (or 19696 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 77107252 is about 8781.0735106819. The cubic root of 77107252 is about 425.6295205959.

The spelling of 77107252 in words is "seventy-seven million, one hundred seven thousand, two hundred fifty-two".