679435 has 4 divisors (see below), whose sum is σ = 815328. Its totient is φ = 543544.

The previous prime is 679433. The next prime is 679451. The reversal of 679435 is 534976.

679435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 679435 - 2¹ = 679433 is a prime.

It is a Duffinian number.

679435 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 679435.

It is not an unprimeable number, because it can be changed into a prime (679433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67939 + ... + 67948.

It is an arithmetic number, because the mean of its divisors is an integer number (203832).

2⁶⁷⁹⁴³⁵ is an apocalyptic number.

679435 is a deficient number, since it is larger than the sum of its proper divisors (135893).

679435 is a wasteful number, since it uses less digits than its factorization.

679435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135892.

The product of its digits is 22680, while the sum is 34.

The square root of 679435 is about 824.2784723623. The cubic root of 679435 is about 87.9122317068.

The spelling of 679435 in words is "six hundred seventy-nine thousand, four hundred thirty-five".