7993197 has 6 divisors (see below), whose sum is σ = 11545742. Its totient is φ = 5328792.

The previous prime is 7993187. The next prime is 7993199. The reversal of 7993197 is 7913997.

It can be written as a sum of positive squares in only one way, i.e., 7322436 + 670761 = 2706^2 + 819^2 .

It is not a de Polignac number, because 7993197 - 2¹⁵ = 7960429 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7993199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 444058 + ... + 444075.

Almost surely, 2^7993197 is an apocalyptic number.

It is an amenable number.

7993197 is a deficient number, since it is larger than the sum of its proper divisors (3552545).

7993197 is a wasteful number, since it uses less digits than its factorization.

7993197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888139 (or 888136 counting only the distinct ones).

The product of its digits is 107163, while the sum is 45.

The square root of 7993197 is about 2827.2242571116. The cubic root of 7993197 is about 199.9432922560.

The spelling of 7993197 in words is "seven million, nine hundred ninety-three thousand, one hundred ninety-seven".