679499823 has 4 divisors (see below), whose sum is σ = 905999768. Its totient is φ = 452999880.

The previous prime is 679499813. The next prime is 679499827. The reversal of 679499823 is 328994976.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 679499823 - 2⁵ = 679499791 is a prime.

It is a super-3 number, since 3×679499823³ (a number of 27 digits) contains 333 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 (679499827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113249968 + ... + 113249973.

It is an arithmetic number, because the mean of its divisors is an integer number (226499942).

Almost surely, 2^679499823 is an apocalyptic number.

679499823 is a deficient number, since it is larger than the sum of its proper divisors (226499945).

679499823 is a wasteful number, since it uses less digits than its factorization.

679499823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226499944.

The product of its digits is 5878656, while the sum is 57.

The square root of 679499823 is about 26067.2174004054. The cubic root of 679499823 is about 879.1502743822.

The spelling of 679499823 in words is "six hundred seventy-nine million, four hundred ninety-nine thousand, eight hundred twenty-three".