978820752 has 160 divisors (see below), whose sum is σ = 3247792128. Its totient is φ = 246901248.

The previous prime is 978820741. The next prime is 978820811. The reversal of 978820752 is 257028879.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95593 + ... + 105335.

Almost surely, 2^978820752 is an apocalyptic number.

978820752 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 978820752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1623896064).

978820752 is an abundant number, since it is smaller than the sum of its proper divisors (2268971376).

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

978820752 is a wasteful number, since it uses less digits than its factorization.

978820752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9797 (or 9791 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 978820752 is about 31286.1111677370. Note that the first 4 decimals coincide. The cubic root of 978820752 is about 992.8898157646.

The spelling of 978820752 in words is "nine hundred seventy-eight million, eight hundred twenty thousand, seven hundred fifty-two".