974758728 has 16 divisors (see below), whose sum is σ = 2436896880. Its totient is φ = 324919568.

The previous prime is 974758727. The next prime is 974758739. The reversal of 974758728 is 827857479.

It is a super-3 number, since 3×974758728³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (974758721) 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 3 ways as a sum of consecutive naturals, for example, 20307450 + ... + 20307497.

It is an arithmetic number, because the mean of its divisors is an integer number (152306055).

Almost surely, 2^974758728 is an apocalyptic number.

It is an amenable number.

974758728 is an abundant number, since it is smaller than the sum of its proper divisors (1462138152).

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

974758728 is a wasteful number, since it uses less digits than its factorization.

974758728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40614956 (or 40614952 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 57.

The square root of 974758728 is about 31221.1263089595. The cubic root of 974758728 is about 991.5144416326.

The spelling of 974758728 in words is "nine hundred seventy-four million, seven hundred fifty-eight thousand, seven hundred twenty-eight".