974854657 has 12 divisors (see below), whose sum is σ = 1137901716. Its totient is φ = 832725600.

The previous prime is 974854627. The next prime is 974854669. The reversal of 974854657 is 756458479.

It can be written as a sum of positive squares in 2 ways, for example, as 834574321 + 140280336 = 28889^2 + 11844^2 .

It is a de Polignac number, because none of the positive numbers 2^k-974854657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 974854598 and 974854607.

It is not an unprimeable number, because it can be changed into a prime (974854607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19594 + ... + 48307.

It is an arithmetic number, because the mean of its divisors is an integer number (94825143).

Almost surely, 2^974854657 is an apocalyptic number.

It is an amenable number.

974854657 is a deficient number, since it is larger than the sum of its proper divisors (163047059).

974854657 is a wasteful number, since it uses less digits than its factorization.

974854657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68208 (or 68201 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The square root of 974854657 is about 31222.6625546253. The cubic root of 974854657 is about 991.5469665594.

The spelling of 974854657 in words is "nine hundred seventy-four million, eight hundred fifty-four thousand, six hundred fifty-seven".