679959 has 24 divisors (see below), whose sum is σ = 1153152. Its totient is φ = 378000.

The previous prime is 679957. The next prime is 679961. The reversal of 679959 is 959976.

It is an interprime number because it is at equal distance from previous prime (679957) and next prime (679961).

It is not a de Polignac number, because 679959 - 2¹ = 679957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2584 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (48048).

2⁶⁷⁹⁹⁵⁹ is an apocalyptic number.

679959 is a deficient number, since it is larger than the sum of its proper divisors (473193).

679959 is a wasteful number, since it uses less digits than its factorization.

679959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 304 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 679959 is about 824.5962648472. The cubic root of 679959 is about 87.9348260545.

The spelling of 679959 in words is "six hundred seventy-nine thousand, nine hundred fifty-nine".