679453 has 4 divisors (see below), whose sum is σ = 683100. Its totient is φ = 675808.

The previous prime is 679451. The next prime is 679463. The reversal of 679453 is 354976.

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

It can be written as a sum of positive squares in 2 ways, for example, as 315844 + 363609 = 562^2 + 603^2 .

It is a cyclic number.

It is not a de Polignac number, because 679453 - 2¹ = 679451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679451) by changing a digit.

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, 1528 + ... + 1921.

It is an arithmetic number, because the mean of its divisors is an integer number (170775).

2⁶⁷⁹⁴⁵³ is an apocalyptic number.

It is an amenable number.

679453 is a deficient number, since it is larger than the sum of its proper divisors (3647).

679453 is a wasteful number, since it uses less digits than its factorization.

679453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646.

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

The square root of 679453 is about 824.2893909302. The cubic root of 679453 is about 87.9130080411.

The spelling of 679453 in words is "six hundred seventy-nine thousand, four hundred fifty-three".