78914520 has 128 divisors (see below), whose sum is σ = 266328000. Its totient is φ = 20782080.

The previous prime is 78914513. The next prime is 78914557. The reversal of 78914520 is 2541987.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95710 + ... + 96530.

Almost surely, 2^78914520 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 78914520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133164000).

78914520 is an abundant number, since it is smaller than the sum of its proper divisors (187413480).

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

78914520 is a wasteful number, since it uses less digits than its factorization.

78914520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 78914520 is about 8883.3844901591. The cubic root of 78914520 is about 428.9292269186.

The spelling of 78914520 in words is "seventy-eight million, nine hundred fourteen thousand, five hundred twenty".