78070528 has 36 divisors (see below), whose sum is σ = 165012120. Its totient is φ = 36737024.

The previous prime is 78070513. The next prime is 78070529. The reversal of 78070528 is 82507087.

It is not an unprimeable number, because it can be changed into a prime (78070529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4618 + ... + 13321.

It is an arithmetic number, because the mean of its divisors is an integer number (4583670).

Almost surely, 2^78070528 is an apocalyptic number.

It is an amenable number.

78070528 is an abundant number, since it is smaller than the sum of its proper divisors (86941592).

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

78070528 is a wasteful number, since it uses less digits than its factorization.

78070528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17972 (or 17958 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 78070528 is about 8835.7528258774. The cubic root of 78070528 is about 427.3946080382.

The spelling of 78070528 in words is "seventy-eight million, seventy thousand, five hundred twenty-eight".