7939394 has 16 divisors (see below), whose sum is σ = 12320640. Its totient is φ = 3834960.

The previous prime is 7939387. The next prime is 7939403. The reversal of 7939394 is 4939397.

7939394 = T₄₈₉ + T₄₉₀ + ... + T₅₄₇.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6647 + ... + 7749.

It is an arithmetic number, because the mean of its divisors is an integer number (770040).

Almost surely, 2^7939394 is an apocalyptic number.

7939394 is a deficient number, since it is larger than the sum of its proper divisors (4381246).

7939394 is a wasteful number, since it uses less digits than its factorization.

7939394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225.

The product of its digits is 183708, while the sum is 44.

The square root of 7939394 is about 2817.6930279929. The cubic root of 7939394 is about 199.4936692275.

The spelling of 7939394 in words is "seven million, nine hundred thirty-nine thousand, three hundred ninety-four".