978808404 has 24 divisors (see below), whose sum is σ = 2610155968. Its totient is φ = 279659520.

The previous prime is 978808387. The next prime is 978808409. The reversal of 978808404 is 404808879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978808409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5826157 + ... + 5826324.

Almost surely, 2^978808404 is an apocalyptic number.

It is an amenable number.

978808404 is an abundant number, since it is smaller than the sum of its proper divisors (1631347564).

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

978808404 is a wasteful number, since it uses less digits than its factorization.

978808404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11652495 (or 11652493 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 978808404 is about 31285.9138271523. The cubic root of 978808404 is about 992.8856405858.

The spelling of 978808404 in words is "nine hundred seventy-eight million, eight hundred eight thousand, four hundred four".