974428393 has 8 divisors (see below), whose sum is σ = 995904000. Its totient is φ = 952983840.

The previous prime is 974428387. The next prime is 974428409. The reversal of 974428393 is 393824479.

It is a happy number.

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-974428393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (974428303) 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, 62608 + ... + 76606.

It is an arithmetic number, because the mean of its divisors is an integer number (124488000).

Almost surely, 2^974428393 is an apocalyptic number.

It is an amenable number.

974428393 is a deficient number, since it is larger than the sum of its proper divisors (21475607).

974428393 is a wasteful number, since it uses less digits than its factorization.

974428393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15527.

The product of its digits is 1306368, while the sum is 49.

The square root of 974428393 is about 31215.8356127143. The cubic root of 974428393 is about 991.4024245355.

The spelling of 974428393 in words is "nine hundred seventy-four million, four hundred twenty-eight thousand, three hundred ninety-three".