7993738 has 4 divisors (see below), whose sum is σ = 11990610. Its totient is φ = 3996868.

The previous prime is 7993721. The next prime is 7993747. The reversal of 7993738 is 8373997.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4941729 + 3052009 = 2223^2 + 1747^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998433 + ... + 1998436.

Almost surely, 2^7993738 is an apocalyptic number.

7993738 is a deficient number, since it is larger than the sum of its proper divisors (3996872).

7993738 is a wasteful number, since it uses less digits than its factorization.

7993738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996871.

The product of its digits is 285768, while the sum is 46.

The square root of 7993738 is about 2827.3199323741. The cubic root of 7993738 is about 199.9478030452.

The spelling of 7993738 in words is "seven million, nine hundred ninety-three thousand, seven hundred thirty-eight".