7974747 has 24 divisors (see below), whose sum is σ = 12991440. Its totient is φ = 4831200.

The previous prime is 7974731. The next prime is 7974779. The reversal of 7974747 is 7474797.

It is not a de Polignac number, because 7974747 - 2⁴ = 7974731 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7974727) 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, 2047 + ... + 4487.

It is an arithmetic number, because the mean of its divisors is an integer number (541310).

Almost surely, 2^7974747 is an apocalyptic number.

7974747 is a deficient number, since it is larger than the sum of its proper divisors (5016693).

7974747 is a wasteful number, since it uses less digits than its factorization.

7974747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472 (or 2455 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The square root of 7974747 is about 2823.9594543832. The cubic root of 7974747 is about 199.7893365157.

The spelling of 7974747 in words is "seven million, nine hundred seventy-four thousand, seven hundred forty-seven".