8920978 has 8 divisors (see below), whose sum is σ = 14598000. Its totient is φ = 4054980.

The previous prime is 8920943. The next prime is 8920981. The reversal of 8920978 is 8790298.

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, 202728 + ... + 202771.

It is an arithmetic number, because the mean of its divisors is an integer number (1824750).

Almost surely, 2^8920978 is an apocalyptic number.

8920978 is a deficient number, since it is larger than the sum of its proper divisors (5677022).

8920978 is a wasteful number, since it uses less digits than its factorization.

8920978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405512.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 8920978 is about 2986.8006294361. The cubic root of 8920978 is about 207.3978051953.

The spelling of 8920978 in words is "eight million, nine hundred twenty thousand, nine hundred seventy-eight".