78992262 has 48 divisors (see below), whose sum is σ = 178017840. Its totient is φ = 25292736.

The previous prime is 78992239. The next prime is 78992273. The reversal of 78992262 is 26229987.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54564 + ... + 55992.

It is an arithmetic number, because the mean of its divisors is an integer number (3708705).

Almost surely, 2^78992262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78992262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89008920).

78992262 is an abundant number, since it is smaller than the sum of its proper divisors (99025578).

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

78992262 is a wasteful number, since it uses less digits than its factorization.

78992262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1554 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 78992262 is about 8887.7591101469. The cubic root of 78992262 is about 429.0700327417.

The spelling of 78992262 in words is "seventy-eight million, nine hundred ninety-two thousand, two hundred sixty-two".