679994 has 8 divisors (see below), whose sum is σ = 1165728. Its totient is φ = 291420.

The previous prime is 679993. The next prime is 679999. The reversal of 679994 is 499976.

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

It is a plaindrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 679994.

It is not an unprimeable number, because it can be changed into a prime (679993) 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, 24272 + ... + 24299.

It is an arithmetic number, because the mean of its divisors is an integer number (145716).

2⁶⁷⁹⁹⁹⁴ is an apocalyptic number.

679994 is a deficient number, since it is larger than the sum of its proper divisors (485734).

679994 is a wasteful number, since it uses less digits than its factorization.

679994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48580.

The product of its digits is 122472, while the sum is 44.

The square root of 679994 is about 824.6174870811. The cubic root of 679994 is about 87.9363348054.

The spelling of 679994 in words is "six hundred seventy-nine thousand, nine hundred ninety-four".