679746 has 16 divisors (see below), whose sum is σ = 1368864. Its totient is φ = 225024.

The previous prime is 679741. The next prime is 679747. The reversal of 679746 is 647976.

679746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (679741) by changing a digit.

679746 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (85554).

2⁶⁷⁹⁷⁴⁶ is an apocalyptic number.

679746 is an abundant number, since it is smaller than the sum of its proper divisors (689118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679746 is a wasteful number, since it uses less digits than its factorization.

679746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785.

The product of its digits is 63504, while the sum is 39.

The square root of 679746 is about 824.4671006171. The cubic root of 679746 is about 87.9256431116.

The spelling of 679746 in words is "six hundred seventy-nine thousand, seven hundred forty-six".