974009681 has 8 divisors (see below), whose sum is σ = 1027779840. Its totient is φ = 921191392.

The previous prime is 974009639. The next prime is 974009693. The reversal of 974009681 is 186900479.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974009681 is a prime.

It is a super-2 number, since 2×974009681² = 1897389717363443522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (974029681) 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, 235865 + ... + 239958.

It is an arithmetic number, because the mean of its divisors is an integer number (128472480).

Almost surely, 2^974009681 is an apocalyptic number.

It is an amenable number.

974009681 is a deficient number, since it is larger than the sum of its proper divisors (53770159).

974009681 is a wasteful number, since it uses less digits than its factorization.

974009681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475935.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 974009681 is about 31209.1281678934. The cubic root of 974009681 is about 991.2604022768.

The spelling of 974009681 in words is "nine hundred seventy-four million, nine thousand, six hundred eighty-one".