679677 has 8 divisors (see below), whose sum is σ = 959616. Its totient is φ = 426432.

The previous prime is 679669. The next prime is 679681. The reversal of 679677 is 776976.

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

It is not a de Polignac number, because 679677 - 2³ = 679669 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6613 + ... + 6714.

It is an arithmetic number, because the mean of its divisors is an integer number (119952).

2⁶⁷⁹⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

679677 is a deficient number, since it is larger than the sum of its proper divisors (279939).

679677 is a wasteful number, since it uses less digits than its factorization.

679677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13347.

The product of its digits is 111132, while the sum is 42.

The square root of 679677 is about 824.4252543439. The cubic root of 679677 is about 87.9226679441.

The spelling of 679677 in words is "six hundred seventy-nine thousand, six hundred seventy-seven".