78520368 has 30 divisors (see below), whose sum is σ = 203003004. Its totient is φ = 26152992.

The previous prime is 78520363. The next prime is 78520373. The reversal of 78520368 is 86302587.

It is an interprime number because it is at equal distance from previous prime (78520363) and next prime (78520373).

It is not an unprimeable number, because it can be changed into a prime (78520363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60753 + ... + 62031.

Almost surely, 2^78520368 is an apocalyptic number.

It is an amenable number.

78520368 is an abundant number, since it is smaller than the sum of its proper divisors (124482636).

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

78520368 is an equidigital number, since it uses as much as digits as its factorization.

78520368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 78520368 is about 8861.1719315224. The cubic root of 78520368 is about 428.2139146706.

The spelling of 78520368 in words is "seventy-eight million, five hundred twenty thousand, three hundred sixty-eight".