679195693 has 4 divisors (see below), whose sum is σ = 740940768. Its totient is φ = 617450620.

The previous prime is 679195663. The next prime is 679195711. The reversal of 679195693 is 396591976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 679195693 - 2¹⁷ = 679064621 is a prime.

It is a super-2 number, since 2×679195693² = 922613578779500498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679195663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30872521 + ... + 30872542.

It is an arithmetic number, because the mean of its divisors is an integer number (185235192).

Almost surely, 2^679195693 is an apocalyptic number.

It is an amenable number.

679195693 is a deficient number, since it is larger than the sum of its proper divisors (61745075).

679195693 is a wasteful number, since it uses less digits than its factorization.

679195693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61745074.

The product of its digits is 2755620, while the sum is 55.

The square root of 679195693 is about 26061.3831751118. The cubic root of 679195693 is about 879.0190916777.

The spelling of 679195693 in words is "six hundred seventy-nine million, one hundred ninety-five thousand, six hundred ninety-three".