974091984 has 80 divisors (see below), whose sum is σ = 2566502400. Its totient is φ = 318296448.

The previous prime is 974091973. The next prime is 974092039. The reversal of 974091984 is 489190479.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552897 + ... + 554655.

It is an arithmetic number, because the mean of its divisors is an integer number (32081280).

Almost surely, 2^974091984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 974091984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283251200).

974091984 is an abundant number, since it is smaller than the sum of its proper divisors (1592410416).

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

974091984 is a wasteful number, since it uses less digits than its factorization.

974091984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 974091984 is about 31210.4467125993. The cubic root of 974091984 is about 991.2883217142.

The spelling of 974091984 in words is "nine hundred seventy-four million, ninety-one thousand, nine hundred eighty-four".