978392752 has 40 divisors (see below), whose sum is σ = 1933804800. Its totient is φ = 479399232.

The previous prime is 978392743. The next prime is 978392771. The reversal of 978392752 is 257293879.

It is a super-2 number, since 2×978392752² = 1914504754332267008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 978392752.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 337453 + ... + 340339.

It is an arithmetic number, because the mean of its divisors is an integer number (48345120).

Almost surely, 2^978392752 is an apocalyptic number.

It is an amenable number.

978392752 is a deficient number, since it is larger than the sum of its proper divisors (955412048).

978392752 is a wasteful number, since it uses less digits than its factorization.

978392752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313 (or 3307 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 52.

The square root of 978392752 is about 31279.2703239702. The cubic root of 978392752 is about 992.7450773828.

The spelling of 978392752 in words is "nine hundred seventy-eight million, three hundred ninety-two thousand, seven hundred fifty-two".