974878479 has 24 divisors (see below), whose sum is σ = 1448293392. Its totient is φ = 631445760.

The previous prime is 974878453. The next prime is 974878517.

It is a happy number.

974878479 is a `hidden beast` number, since 9 + 7 + 487 + 84 + 79 = 666.

974878479 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-974878479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974878579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291712 + ... + 295034.

It is an arithmetic number, because the mean of its divisors is an integer number (60345558).

Almost surely, 2^974878479 is an apocalyptic number.

974878479 is a deficient number, since it is larger than the sum of its proper divisors (473414913).

974878479 is a wasteful number, since it uses less digits than its factorization.

974878479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247 (or 4244 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 63.

The square root of 974878479 is about 31223.0440380178. The cubic root of 974878479 is about 991.5550431272. Note that the first 3 decimals are identical.

The spelling of 974878479 in words is "nine hundred seventy-four million, eight hundred seventy-eight thousand, four hundred seventy-nine".