974721597 has 8 divisors (see below), whose sum is σ = 1299953856. Its totient is φ = 649651872.

The previous prime is 974721589. The next prime is 974721611. The reversal of 974721597 is 795127479.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 974721597 - 2³ = 974721589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974721547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25873 + ... + 51174.

It is an arithmetic number, because the mean of its divisors is an integer number (162494232).

Almost surely, 2^974721597 is an apocalyptic number.

It is an amenable number.

974721597 is a deficient number, since it is larger than the sum of its proper divisors (325232259).

974721597 is a wasteful number, since it uses less digits than its factorization.

974721597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81267.

The product of its digits is 1111320, while the sum is 51.

The square root of 974721597 is about 31220.5316578690. The cubic root of 974721597 is about 991.5018517170.

The spelling of 974721597 in words is "nine hundred seventy-four million, seven hundred twenty-one thousand, five hundred ninety-seven".