679973693 has 4 divisors (see below), whose sum is σ = 777112800. Its totient is φ = 582834588.

The previous prime is 679973689. The next prime is 679973711. The reversal of 679973693 is 396379976.

679973693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 679973693 - 2² = 679973689 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 (679979693) 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, 48569543 + ... + 48569556.

It is an arithmetic number, because the mean of its divisors is an integer number (194278200).

Almost surely, 2^679973693 is an apocalyptic number.

It is an amenable number.

679973693 is a deficient number, since it is larger than the sum of its proper divisors (97139107).

679973693 is an equidigital number, since it uses as much as digits as its factorization.

679973693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97139106.

The product of its digits is 11573604, while the sum is 59.

The square root of 679973693 is about 26076.3052022329. The cubic root of 679973693 is about 879.3545943444.

The spelling of 679973693 in words is "six hundred seventy-nine million, nine hundred seventy-three thousand, six hundred ninety-three".