679694 has 8 divisors (see below), whose sum is σ = 1079568. Its totient is φ = 319840.

The previous prime is 679691. The next prime is 679699. The reversal of 679694 is 496976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 679694.

It is not an unprimeable number, because it can be changed into a prime (679691) 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, 9962 + ... + 10029.

It is an arithmetic number, because the mean of its divisors is an integer number (134946).

2⁶⁷⁹⁶⁹⁴ is an apocalyptic number.

679694 is a deficient number, since it is larger than the sum of its proper divisors (399874).

679694 is a wasteful number, since it uses less digits than its factorization.

679694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010.

The product of its digits is 81648, while the sum is 41.

The square root of 679694 is about 824.4355644925. The cubic root of 679694 is about 87.9234009751.

The spelling of 679694 in words is "six hundred seventy-nine thousand, six hundred ninety-four".