77152236 has 48 divisors (see below), whose sum is σ = 216572160. Its totient is φ = 20882880.

The previous prime is 77152213. The next prime is 77152241. The reversal of 77152236 is 63225177.

It is a junction number, because it is equal to n+sod(n) for n = 77152197 and 77152206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22575 + ... + 25766.

It is an arithmetic number, because the mean of its divisors is an integer number (4511920).

Almost surely, 2^77152236 is an apocalyptic number.

77152236 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

77152236 is an abundant number, since it is smaller than the sum of its proper divisors (139419924).

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

77152236 is a wasteful number, since it uses less digits than its factorization.

77152236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48374 (or 48372 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 77152236 is about 8783.6345552396. The cubic root of 77152236 is about 425.7122745770.

The spelling of 77152236 in words is "seventy-seven million, one hundred fifty-two thousand, two hundred thirty-six".