7974739 has 8 divisors (see below), whose sum is σ = 8364960. Its totient is φ = 7592256.

The previous prime is 7974731. The next prime is 7974779. The reversal of 7974739 is 9374797.

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

It is a cyclic number.

It is not a de Polignac number, because 7974739 - 2³ = 7974731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7974731) 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, 234 + ... + 4000.

It is an arithmetic number, because the mean of its divisors is an integer number (1045620).

Almost surely, 2^7974739 is an apocalyptic number.

7974739 is a deficient number, since it is larger than the sum of its proper divisors (390221).

7974739 is a wasteful number, since it uses less digits than its factorization.

7974739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3869.

The product of its digits is 333396, while the sum is 46.

The square root of 7974739 is about 2823.9580379319. The cubic root of 7974739 is about 199.7892697084.

The spelling of 7974739 in words is "seven million, nine hundred seventy-four thousand, seven hundred thirty-nine".