978800494 has 16 divisors (see below), whose sum is σ = 1694559456. Its totient is φ = 415332000.

The previous prime is 978800477. The next prime is 978800513. The reversal of 978800494 is 494008879.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344697 + ... + 347524.

It is an arithmetic number, because the mean of its divisors is an integer number (105909966).

Almost surely, 2^978800494 is an apocalyptic number.

978800494 is a deficient number, since it is larger than the sum of its proper divisors (715758962).

978800494 is a wasteful number, since it uses less digits than its factorization.

978800494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692331.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 978800494 is about 31285.7874121781. The cubic root of 978800494 is about 992.8829659913.

The spelling of 978800494 in words is "nine hundred seventy-eight million, eight hundred thousand, four hundred ninety-four".