679698893 has 4 divisors (see below), whose sum is σ = 695505888. Its totient is φ = 663891900.

The previous prime is 679698889. The next prime is 679698919. The reversal of 679698893 is 398896976.

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 679698893 - 2² = 679698889 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 (679698293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7903433 + ... + 7903518.

It is an arithmetic number, because the mean of its divisors is an integer number (173876472).

Almost surely, 2^679698893 is an apocalyptic number.

It is an amenable number.

679698893 is a deficient number, since it is larger than the sum of its proper divisors (15806995).

679698893 is a wasteful number, since it uses less digits than its factorization.

679698893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15806994.

The product of its digits is 35271936, while the sum is 65.

The square root of 679698893 is about 26071.0355183679. The cubic root of 679698893 is about 879.2361195638.

The spelling of 679698893 in words is "six hundred seventy-nine million, six hundred ninety-eight thousand, eight hundred ninety-three".