78604576 has 48 divisors (see below), whose sum is σ = 160216056. Its totient is φ = 37933056.

The previous prime is 78604571. The next prime is 78604607. The reversal of 78604576 is 67540687.

It can be written as a sum of positive squares in 4 ways, for example, as 78499600 + 104976 = 8860^2 + 324^2 .

It is not an unprimeable number, because it can be changed into a prime (78604571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233080 + ... + 233416.

Almost surely, 2^78604576 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 78604576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80108028).

78604576 is an abundant number, since it is smaller than the sum of its proper divisors (81611480).

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

78604576 is a wasteful number, since it uses less digits than its factorization.

78604576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 78604576 is about 8865.9221742580. The cubic root of 78604576 is about 428.3669371945.

The spelling of 78604576 in words is "seventy-eight million, six hundred four thousand, five hundred seventy-six".