78608994 has 32 divisors (see below), whose sum is σ = 164000256. Its totient is φ = 25090560.

The previous prime is 78608993. The next prime is 78609043. The reversal of 78608994 is 49980687.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78608993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15864 + ... + 20220.

It is an arithmetic number, because the mean of its divisors is an integer number (5125008).

Almost surely, 2^78608994 is an apocalyptic number.

78608994 is an abundant number, since it is smaller than the sum of its proper divisors (85391262).

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

78608994 is a wasteful number, since it uses less digits than its factorization.

78608994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 78608994 is about 8866.1713270160. The cubic root of 78608994 is about 428.3749625528.

The spelling of 78608994 in words is "seventy-eight million, six hundred eight thousand, nine hundred ninety-four".