7974742 has 8 divisors (see below), whose sum is σ = 12140856. Its totient is φ = 3927792.

The previous prime is 7974731. The next prime is 7974779. The reversal of 7974742 is 2474797.

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

It is a junction number, because it is equal to n+sod(n) for n = 7974695 and 7974704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29623 + ... + 29890.

It is an arithmetic number, because the mean of its divisors is an integer number (1517607).

Almost surely, 2^7974742 is an apocalyptic number.

7974742 is a deficient number, since it is larger than the sum of its proper divisors (4166114).

7974742 is a wasteful number, since it uses less digits than its factorization.

7974742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59582.

The product of its digits is 98784, while the sum is 40.

The square root of 7974742 is about 2823.9585691012. The cubic root of 7974742 is about 199.7892947611.

Subtracting from 7974742 its reverse (2474797), we obtain a palindrome (5499945).

The spelling of 7974742 in words is "seven million, nine hundred seventy-four thousand, seven hundred forty-two".