7913993197 has 8 divisors (see below), whose sum is σ = 8635929120. Its totient is φ = 7192470960.

The previous prime is 7913993161. The next prime is 7913993273.

7913993197 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 7913993197 - 2²³ = 7905604589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7913993117) 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, 62718 + ... + 140575.

It is an arithmetic number, because the mean of its divisors is an integer number (1079491140).

Almost surely, 2^7913993197 is an apocalyptic number.

It is an amenable number.

7913993197 is a deficient number, since it is larger than the sum of its proper divisors (721935923).

7913993197 is a wasteful number, since it uses less digits than its factorization.

7913993197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206843.

The product of its digits is 2893401, while the sum is 58.

The square root of 7913993197 is about 88960.6272291287. The cubic root of 7913993197 is about 1992.8069272834.

The spelling of 7913993197 in words is "seven billion, nine hundred thirteen million, nine hundred ninety-three thousand, one hundred ninety-seven".