679406 has 16 divisors (see below), whose sum is σ = 1254624. Its totient is φ = 268704.

The previous prime is 679403. The next prime is 679409. The reversal of 679406 is 604976.

It is an interprime number because it is at equal distance from previous prime (679403) and next prime (679409).

It is a Curzon number.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685 + ... + 2048.

It is an arithmetic number, because the mean of its divisors is an integer number (78414).

2⁶⁷⁹⁴⁰⁶ is an apocalyptic number.

679406 is a deficient number, since it is larger than the sum of its proper divisors (575218).

679406 is a wasteful number, since it uses less digits than its factorization.

679406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 679406 is about 824.2608810322. The cubic root of 679406 is about 87.9109809170.

The spelling of 679406 in words is "six hundred seventy-nine thousand, four hundred six".