78091882 has 8 divisors (see below), whose sum is σ = 127786752. Its totient is φ = 35496300.

The previous prime is 78091879. The next prime is 78091901. The reversal of 78091882 is 28819087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774794 + ... + 1774837.

It is an arithmetic number, because the mean of its divisors is an integer number (15973344).

Almost surely, 2^78091882 is an apocalyptic number.

78091882 is a deficient number, since it is larger than the sum of its proper divisors (49694870).

78091882 is a wasteful number, since it uses less digits than its factorization.

78091882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549644.

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 78091882 is about 8836.9611292570. The cubic root of 78091882 is about 427.4335717492.

The spelling of 78091882 in words is "seventy-eight million, ninety-one thousand, eight hundred eighty-two".