723879 has 24 divisors (see below), whose sum is σ = 1179360. Its totient is φ = 424512.

The previous prime is 723859. The next prime is 723893. The reversal of 723879 is 978327.

It is not a de Polignac number, because 723879 - 2⁸ = 723623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723829) 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 23 ways as a sum of consecutive naturals, for example, 2557 + ... + 2825.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2⁷²³⁸⁷⁹ is an apocalyptic number.

723879 is a deficient number, since it is larger than the sum of its proper divisors (455481).

723879 is a wasteful number, since it uses less digits than its factorization.

723879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 308 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 723879 is about 850.8107897764. The cubic root of 723879 is about 89.7887638615.

The spelling of 723879 in words is "seven hundred twenty-three thousand, eight hundred seventy-nine".