679454 has 4 divisors (see below), whose sum is σ = 1019184. Its totient is φ = 339726.

The previous prime is 679451. The next prime is 679463. The reversal of 679454 is 454976.

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

It is an Ulam 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 as a sum of consecutive naturals, namely, 169862 + ... + 169865.

It is an arithmetic number, because the mean of its divisors is an integer number (254796).

2⁶⁷⁹⁴⁵⁴ is an apocalyptic number.

679454 is a deficient number, since it is larger than the sum of its proper divisors (339730).

679454 is a wasteful number, since it uses less digits than its factorization.

679454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339729.

The product of its digits is 30240, while the sum is 35.

The square root of 679454 is about 824.2899975130. The cubic root of 679454 is about 87.9130511704.

The spelling of 679454 in words is "six hundred seventy-nine thousand, four hundred fifty-four".