78855882 has 16 divisors (see below), whose sum is σ = 180242112. Its totient is φ = 22530240.

The previous prime is 78855863. The next prime is 78855883. The reversal of 78855882 is 28855887.

It is not an unprimeable number, because it can be changed into a prime (78855883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938719 + ... + 938802.

It is an arithmetic number, because the mean of its divisors is an integer number (11265132).

Almost surely, 2^78855882 is an apocalyptic number.

78855882 is an abundant number, since it is smaller than the sum of its proper divisors (101386230).

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

78855882 is a wasteful number, since it uses less digits than its factorization.

78855882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877533.

The product of its digits is 1433600, while the sum is 51.

The square root of 78855882 is about 8880.0834455539. The cubic root of 78855882 is about 428.8229609477.

The spelling of 78855882 in words is "seventy-eight million, eight hundred fifty-five thousand, eight hundred eighty-two".