679023 has 20 divisors (see below), whose sum is σ = 1036728. Its totient is φ = 442800.

The previous prime is 678989. The next prime is 679033. The reversal of 679023 is 320976.

It is not a de Polignac number, because 679023 - 2⁶ = 678959 is a prime.

It is a super-2 number, since 2×679023² = 922144469058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679033) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6673 + ... + 6773.

2⁶⁷⁹⁰²³ is an apocalyptic number.

679023 is a deficient number, since it is larger than the sum of its proper divisors (357705).

679023 is a wasteful number, since it uses less digits than its factorization.

679023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 679023 is about 824.0285189240. The cubic root of 679023 is about 87.8944585261.

Adding to 679023 its reverse (320976), we get a palindrome (999999).

The spelling of 679023 in words is "six hundred seventy-nine thousand, twenty-three".