82968978 has 16 divisors (see below), whose sum is σ = 166167936. Its totient is φ = 27618000.

The previous prime is 82968943. The next prime is 82968983. The reversal of 82968978 is 87986928.

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, 4701 + ... + 13712.

It is an arithmetic number, because the mean of its divisors is an integer number (10385496).

Almost surely, 2^82968978 is an apocalyptic number.

82968978 is an abundant number, since it is smaller than the sum of its proper divisors (83198958).

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

82968978 is a wasteful number, since it uses less digits than its factorization.

82968978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19169.

The product of its digits is 3483648, while the sum is 57.

The square root of 82968978 is about 9108.7308665917. The cubic root of 82968978 is about 436.1527149291.

The spelling of 82968978 in words is "eighty-two million, nine hundred sixty-eight thousand, nine hundred seventy-eight".