78754720 has 96 divisors (see below), whose sum is σ = 210107520. Its totient is φ = 27632640.

The previous prime is 78754717. The next prime is 78754757. The reversal of 78754720 is 2745787.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50269 + ... + 51811.

It is an arithmetic number, because the mean of its divisors is an integer number (2188620).

Almost surely, 2^78754720 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 78754720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105053760).

78754720 is an abundant number, since it is smaller than the sum of its proper divisors (131352800).

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

78754720 is a wasteful number, since it uses less digits than its factorization.

78754720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 78754720 is about 8874.3856125368. The cubic root of 78754720 is about 428.6395074919.

The spelling of 78754720 in words is "seventy-eight million, seven hundred fifty-four thousand, seven hundred twenty".