82978346 has 16 divisors (see below), whose sum is σ = 139453920. Its totient is φ = 36697680.

The previous prime is 82978331. The next prime is 82978369. The reversal of 82978346 is 64387928.

It is a self number, because there is not a number n which added to its sum of digits gives 82978346.

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, 50156 + ... + 51783.

It is an arithmetic number, because the mean of its divisors is an integer number (8715870).

Almost surely, 2^82978346 is an apocalyptic number.

82978346 is a deficient number, since it is larger than the sum of its proper divisors (56475574).

82978346 is a wasteful number, since it uses less digits than its factorization.

82978346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101989.

The product of its digits is 580608, while the sum is 47.

The square root of 82978346 is about 9109.2450839792. The cubic root of 82978346 is about 436.1691295978.

The spelling of 82978346 in words is "eighty-two million, nine hundred seventy-eight thousand, three hundred forty-six".