7997738 has 8 divisors (see below), whose sum is σ = 13710432. Its totient is φ = 3427596.

The previous prime is 7997729. The next prime is 7997741. The reversal of 7997738 is 8377997.

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

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, 285620 + ... + 285647.

It is an arithmetic number, because the mean of its divisors is an integer number (1713804).

Almost surely, 2^7997738 is an apocalyptic number.

7997738 is a deficient number, since it is larger than the sum of its proper divisors (5712694).

7997738 is a wasteful number, since it uses less digits than its factorization.

7997738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571276.

The product of its digits is 666792, while the sum is 50.

The square root of 7997738 is about 2828.0272275917. The cubic root of 7997738 is about 199.9811482231.

The spelling of 7997738 in words is "seven million, nine hundred ninety-seven thousand, seven hundred thirty-eight".