679388 has 24 divisors (see below), whose sum is σ = 1284192. Its totient is φ = 313344.

The previous prime is 679381. The next prime is 679403. The reversal of 679388 is 883976.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 679388.

It is not an unprimeable number, because it can be changed into a prime (679381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6545 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (53508).

2⁶⁷⁹³⁸⁸ is an apocalyptic number.

679388 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

679388 is a deficient number, since it is larger than the sum of its proper divisors (604804).

679388 is a wasteful number, since it uses less digits than its factorization.

679388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 219 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 679388 is about 824.2499620867. The cubic root of 679388 is about 87.9102045469.

The spelling of 679388 in words is "six hundred seventy-nine thousand, three hundred eighty-eight".