679407 has 8 divisors (see below), whose sum is σ = 923184. Its totient is φ = 444288.

The previous prime is 679403. The next prime is 679409. The reversal of 679407 is 704976.

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

It is not a de Polignac number, because 679407 - 2² = 679403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679403) 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, 1978 + ... + 2295.

It is an arithmetic number, because the mean of its divisors is an integer number (115398).

2⁶⁷⁹⁴⁰⁷ is an apocalyptic number.

679407 is a deficient number, since it is larger than the sum of its proper divisors (243777).

679407 is a wasteful number, since it uses less digits than its factorization.

679407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 679407 is about 824.2614876361. The cubic root of 679407 is about 87.9110240483.

The spelling of 679407 in words is "six hundred seventy-nine thousand, four hundred seven".