77361828 has 24 divisors (see below), whose sum is σ = 181184640. Its totient is φ = 25691040.

The previous prime is 77361743. The next prime is 77361839. The reversal of 77361828 is 82816377.

It is a self number, because there is not a number n which added to its sum of digits gives 77361828.

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, 8643 + ... + 15146.

It is an arithmetic number, because the mean of its divisors is an integer number (7549360).

Almost surely, 2^77361828 is an apocalyptic number.

It is an amenable number.

77361828 is an abundant number, since it is smaller than the sum of its proper divisors (103822812).

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

77361828 is a wasteful number, since it uses less digits than its factorization.

77361828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24067 (or 24065 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 77361828 is about 8795.5572876311. The cubic root of 77361828 is about 426.0974231106.

The spelling of 77361828 in words is "seventy-seven million, three hundred sixty-one thousand, eight hundred twenty-eight".