679499 has 4 divisors (see below), whose sum is σ = 702960. Its totient is φ = 656040.

The previous prime is 679487. The next prime is 679501. The reversal of 679499 is 994976.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-679499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679409) 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, 11687 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (175740).

2⁶⁷⁹⁴⁹⁹ is an apocalyptic number.

679499 is a deficient number, since it is larger than the sum of its proper divisors (23461).

679499 is a wasteful number, since it uses less digits than its factorization.

679499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23460.

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

The square root of 679499 is about 824.3172932797. The cubic root of 679499 is about 87.9149919444.

The spelling of 679499 in words is "six hundred seventy-nine thousand, four hundred ninety-nine".