268853 has 4 divisors (see below), whose sum is σ = 289548. Its totient is φ = 248160.

The previous prime is 268843. The next prime is 268861. The reversal of 268853 is 358862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31684 + 237169 = 178^2 + 487^2 .

It is a cyclic number.

It is not a de Polignac number, because 268853 - 2⁶ = 268789 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10328 + ... + 10353.

It is an arithmetic number, because the mean of its divisors is an integer number (72387).

2²⁶⁸⁸⁵³ is an apocalyptic number.

It is an amenable number.

268853 is a deficient number, since it is larger than the sum of its proper divisors (20695).

268853 is a wasteful number, since it uses less digits than its factorization.

268853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20694.

The product of its digits is 11520, while the sum is 32.

The square root of 268853 is about 518.5103663380. The cubic root of 268853 is about 64.5413872149.

Subtracting 268853 from its reverse (358862), we obtain a palindrome (90009).

The spelling of 268853 in words is "two hundred sixty-eight thousand, eight hundred fifty-three".