78936576 has 80 divisors (see below), whose sum is σ = 222735744. Its totient is φ = 24756224.

The previous prime is 78936527. The next prime is 78936581. The reversal of 78936576 is 67563987.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 24601 + ... + 27623.

Almost surely, 2^78936576 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 78936576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111367872).

78936576 is an abundant number, since it is smaller than the sum of its proper divisors (143799168).

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

78936576 is a wasteful number, since it uses less digits than its factorization.

78936576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061 (or 3045 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 78936576 is about 8884.6258221717. The cubic root of 78936576 is about 428.9691840004.

The spelling of 78936576 in words is "seventy-eight million, nine hundred thirty-six thousand, five hundred seventy-six".