77226528 has 24 divisors (see below), whose sum is σ = 202719888. Its totient is φ = 25742144.

The previous prime is 77226521. The next prime is 77226533. The reversal of 77226528 is 82562277.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (77226521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402126 + ... + 402317.

It is an arithmetic number, because the mean of its divisors is an integer number (8446662).

Almost surely, 2^77226528 is an apocalyptic number.

It is an amenable number.

77226528 is an abundant number, since it is smaller than the sum of its proper divisors (125493360).

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

77226528 is a wasteful number, since it uses less digits than its factorization.

77226528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804456 (or 804448 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 77226528 is about 8787.8625387520. The cubic root of 77226528 is about 425.8488740755.

The spelling of 77226528 in words is "seventy-seven million, two hundred twenty-six thousand, five hundred twenty-eight".