78980574 has 16 divisors (see below), whose sum is σ = 164829312. Its totient is φ = 25182168.

The previous prime is 78980569. The next prime is 78980581. The reversal of 78980574 is 47508987.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286024 + ... + 286299.

It is an arithmetic number, because the mean of its divisors is an integer number (10301832).

Almost surely, 2^78980574 is an apocalyptic number.

78980574 is an abundant number, since it is smaller than the sum of its proper divisors (85848738).

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

78980574 is a wasteful number, since it uses less digits than its factorization.

78980574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572351.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 78980574 is about 8887.1015522498. The cubic root of 78980574 is about 429.0488694118.

The spelling of 78980574 in words is "seventy-eight million, nine hundred eighty thousand, five hundred seventy-four".