508872978 has 24 divisors (see below), whose sum is σ = 1103444316. Its totient is φ = 169488000.

The previous prime is 508872977. The next prime is 508872979. The reversal of 508872978 is 879278805.

It is an interprime number because it is at equal distance from previous prime (508872977) and next prime (508872979).

It can be written as a sum of positive squares in 2 ways, for example, as 503688249 + 5184729 = 22443^2 + 2277^2 .

It is not an unprimeable number, because it can be changed into a prime (508872971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13078 + ... + 34478.

Almost surely, 2^508872978 is an apocalyptic number.

508872978 is an abundant number, since it is smaller than the sum of its proper divisors (594571338).

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

508872978 is a wasteful number, since it uses less digits than its factorization.

508872978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22730 (or 22727 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The square root of 508872978 is about 22558.2130941261. The cubic root of 508872978 is about 798.3680157565.

The spelling of 508872978 in words is "five hundred eight million, eight hundred seventy-two thousand, nine hundred seventy-eight".