679394 has 8 divisors (see below), whose sum is σ = 1046748. Its totient is φ = 330480.

The previous prime is 679381. The next prime is 679403. The reversal of 679394 is 493976.

It can be written as a sum of positive squares in 2 ways, for example, as 619369 + 60025 = 787^2 + 245^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4517 + ... + 4664.

2⁶⁷⁹³⁹⁴ is an apocalyptic number.

679394 is a deficient number, since it is larger than the sum of its proper divisors (367354).

679394 is a wasteful number, since it uses less digits than its factorization.

679394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9220.

The product of its digits is 40824, while the sum is 38.

The square root of 679394 is about 824.2536017513. The cubic root of 679394 is about 87.9104633385.

The spelling of 679394 in words is "six hundred seventy-nine thousand, three hundred ninety-four".