679418 has 8 divisors (see below), whose sum is σ = 1036020. Its totient is φ = 334080.

The previous prime is 679417. The next prime is 679423. The reversal of 679418 is 814976.

It can be written as a sum of positive squares in 2 ways, for example, as 537289 + 142129 = 733^2 + 377^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (679417) 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 3 ways as a sum of consecutive naturals, for example, 2663 + ... + 2906.

2⁶⁷⁹⁴¹⁸ is an apocalyptic number.

679418 is a deficient number, since it is larger than the sum of its proper divisors (356602).

679418 is a wasteful number, since it uses less digits than its factorization.

679418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632.

The product of its digits is 12096, while the sum is 35.

The square root of 679418 is about 824.2681602488. The cubic root of 679418 is about 87.9114984895.

The spelling of 679418 in words is "six hundred seventy-nine thousand, four hundred eighteen".