7997938 has 16 divisors (see below), whose sum is σ = 13337856. Its totient is φ = 3571920.

The previous prime is 7997933. The next prime is 7997947. The reversal of 7997938 is 8397997.

It is not an unprimeable number, because it can be changed into a prime (7997933) 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, 4156 + ... + 5767.

It is an arithmetic number, because the mean of its divisors is an integer number (833616).

Almost surely, 2^7997938 is an apocalyptic number.

7997938 is a deficient number, since it is larger than the sum of its proper divisors (5339918).

7997938 is a wasteful number, since it uses less digits than its factorization.

7997938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9969.

The product of its digits is 857304, while the sum is 52.

The square root of 7997938 is about 2828.0625877091. The cubic root of 7997938 is about 199.9828151901.

The spelling of 7997938 in words is "seven million, nine hundred ninety-seven thousand, nine hundred thirty-eight".