974814509 has 8 divisors (see below), whose sum is σ = 980994168. Its totient is φ = 968647680.

The previous prime is 974814487. The next prime is 974814517. The reversal of 974814509 is 905418479.

It can be written as a sum of positive squares in 4 ways, for example, as 50836900 + 923977609 = 7130^2 + 30397^2 .

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-974814509 is a prime.

It is a super-2 number, since 2×974814509² = 1900526653913822162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974814569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181949 + ... + 187229.

It is an arithmetic number, because the mean of its divisors is an integer number (122624271).

Almost surely, 2^974814509 is an apocalyptic number.

It is an amenable number.

974814509 is a deficient number, since it is larger than the sum of its proper divisors (6179659).

974814509 is a wasteful number, since it uses less digits than its factorization.

974814509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 974814509 is about 31222.0196175712. The cubic root of 974814509 is about 991.5333545562.

The spelling of 974814509 in words is "nine hundred seventy-four million, eight hundred fourteen thousand, five hundred nine".