78986922 has 48 divisors (see below), whose sum is σ = 191771712. Its totient is φ = 21584640.

The previous prime is 78986917. The next prime is 78986969. The reversal of 78986922 is 22968987.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 922 + ... + 12602.

It is an arithmetic number, because the mean of its divisors is an integer number (3995244).

Almost surely, 2^78986922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78986922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95885856).

78986922 is an abundant number, since it is smaller than the sum of its proper divisors (112784790).

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

78986922 is a wasteful number, since it uses less digits than its factorization.

78986922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11723 (or 11716 counting only the distinct ones).

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

The square root of 78986922 is about 8887.4586918871. The cubic root of 78986922 is about 429.0603639229.

The spelling of 78986922 in words is "seventy-eight million, nine hundred eighty-six thousand, nine hundred twenty-two".