268723 has 8 divisors (see below), whose sum is σ = 330848. Its totient is φ = 212544.

The previous prime is 268721. The next prime is 268729. The reversal of 268723 is 327862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268723 - 2¹ = 268721 is a prime.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 268691 and 268700.

It is not an unprimeable number, because it can be changed into a prime (268721) 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, 1386 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (41356).

2²⁶⁸⁷²³ is an apocalyptic number.

268723 is a deficient number, since it is larger than the sum of its proper divisors (62125).

268723 is a wasteful number, since it uses less digits than its factorization.

268723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973.

The product of its digits is 4032, while the sum is 28.

The square root of 268723 is about 518.3849920667. The cubic root of 268723 is about 64.5309828514.

The spelling of 268723 in words is "two hundred sixty-eight thousand, seven hundred twenty-three".