78479826 has 16 divisors (see below), whose sum is σ = 157123200. Its totient is φ = 26132688.

The previous prime is 78479789. The next prime is 78479831. The reversal of 78479826 is 62897487.

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, 61 + ... + 12528.

It is an arithmetic number, because the mean of its divisors is an integer number (9820200).

Almost surely, 2^78479826 is an apocalyptic number.

78479826 is an abundant number, since it is smaller than the sum of its proper divisors (78643374).

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

78479826 is a wasteful number, since it uses less digits than its factorization.

78479826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13633.

The product of its digits is 1354752, while the sum is 51.

The square root of 78479826 is about 8858.8840154954. The cubic root of 78479826 is about 428.1402028523.

The spelling of 78479826 in words is "seventy-eight million, four hundred seventy-nine thousand, eight hundred twenty-six".