268397 has 4 divisors (see below), whose sum is σ = 269760. Its totient is φ = 267036.

The previous prime is 268343. The next prime is 268403. The reversal of 268397 is 793862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793862 = 2 ⋅396931.

It is a cyclic number.

It is not a de Polignac number, because 268397 - 2¹⁰ = 267373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268297) 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, 323 + ... + 800.

It is an arithmetic number, because the mean of its divisors is an integer number (67440).

2²⁶⁸³⁹⁷ is an apocalyptic number.

It is an amenable number.

268397 is a deficient number, since it is larger than the sum of its proper divisors (1363).

268397 is a wasteful number, since it uses less digits than its factorization.

268397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362.

The product of its digits is 18144, while the sum is 35.

The square root of 268397 is about 518.0704585286. The cubic root of 268397 is about 64.5048771426.

The spelling of 268397 in words is "two hundred sixty-eight thousand, three hundred ninety-seven".