77852152 has 32 divisors (see below), whose sum is σ = 169660800. Its totient is φ = 32798304.

The previous prime is 77852123. The next prime is 77852161. The reversal of 77852152 is 25125877.

It is a super-2 number, since 2×77852152² = 12121915142062208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8478 + ... + 15085.

It is an arithmetic number, because the mean of its divisors is an integer number (5301900).

Almost surely, 2^77852152 is an apocalyptic number.

It is an amenable number.

77852152 is an abundant number, since it is smaller than the sum of its proper divisors (91808648).

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

77852152 is a wasteful number, since it uses less digits than its factorization.

77852152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23635 (or 23631 counting only the distinct ones).

The product of its digits is 39200, while the sum is 37.

The square root of 77852152 is about 8823.3866513941. The cubic root of 77852152 is about 426.9957384302.

The spelling of 77852152 in words is "seventy-seven million, eight hundred fifty-two thousand, one hundred fifty-two".