974820394 has 8 divisors (see below), whose sum is σ = 1462364640. Its totient is φ = 487365516.

The previous prime is 974820391. The next prime is 974820499. The reversal of 974820394 is 493028479.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (974820391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24957 + ... + 50719.

It is an arithmetic number, because the mean of its divisors is an integer number (182795580).

Almost surely, 2^974820394 is an apocalyptic number.

974820394 is a deficient number, since it is larger than the sum of its proper divisors (487544246).

974820394 is a wasteful number, since it uses less digits than its factorization.

974820394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44684.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 974820394 is about 31222.1138618128. The cubic root of 974820394 is about 991.5353498630.

The spelling of 974820394 in words is "nine hundred seventy-four million, eight hundred twenty thousand, three hundred ninety-four".