978788452 has 24 divisors (see below), whose sum is σ = 1724161824. Its totient is φ = 486182592.

The previous prime is 978788443. The next prime is 978788479. The reversal of 978788452 is 254887879.

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, 424968 + ... + 427264.

It is an arithmetic number, because the mean of its divisors is an integer number (71840076).

Almost surely, 2^978788452 is an apocalyptic number.

It is an amenable number.

978788452 is a deficient number, since it is larger than the sum of its proper divisors (745373372).

978788452 is a wasteful number, since it uses less digits than its factorization.

978788452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955 (or 2953 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 58.

The square root of 978788452 is about 31285.5949599812. The cubic root of 978788452 is about 992.8788942233.

The spelling of 978788452 in words is "nine hundred seventy-eight million, seven hundred eighty-eight thousand, four hundred fifty-two".