679123814 has 4 divisors (see below), whose sum is σ = 1018685724. Its totient is φ = 339561906.

The previous prime is 679123801. The next prime is 679123831. The reversal of 679123814 is 418321976.

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

It is a super-2 number, since 2×679123814² = 922418309483813192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169780952 + ... + 169780955.

It is an arithmetic number, because the mean of its divisors is an integer number (254671431).

Almost surely, 2^679123814 is an apocalyptic number.

679123814 is a deficient number, since it is larger than the sum of its proper divisors (339561910).

679123814 is a wasteful number, since it uses less digits than its factorization.

679123814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339561909.

The product of its digits is 72576, while the sum is 41.

The square root of 679123814 is about 26060.0041059091. The cubic root of 679123814 is about 878.9880818411.

The spelling of 679123814 in words is "six hundred seventy-nine million, one hundred twenty-three thousand, eight hundred fourteen".