78930576 has 120 divisors (see below), whose sum is σ = 234594360. Its totient is φ = 24729600.

The previous prime is 78930563. The next prime is 78930581. The reversal of 78930576 is 67503987.

It is a happy number.

78930576 is a `hidden beast` number, since 78 + 9 + 3 + 0 + 576 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 78854400 = 276^2 + 8880^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170986 + ... + 171446.

It is an arithmetic number, because the mean of its divisors is an integer number (1954953).

Almost surely, 2^78930576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78930576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117297180).

78930576 is an abundant number, since it is smaller than the sum of its proper divisors (155663784).

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

78930576 is a wasteful number, since it uses less digits than its factorization.

78930576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 78930576 is about 8884.2881538140. The cubic root of 78930576 is about 428.9583150199.

The spelling of 78930576 in words is "seventy-eight million, nine hundred thirty thousand, five hundred seventy-six".