268493 has 2 divisors, whose sum is σ = 268494. Its totient is φ = 268492.

The previous prime is 268487. The next prime is 268501. The reversal of 268493 is 394862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268324 + 169 = 518^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 268493 - 2⁸ = 268237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134246 + 134247.

It is an arithmetic number, because the mean of its divisors is an integer number (134247).

2²⁶⁸⁴⁹³ is an apocalyptic number.

It is an amenable number.

268493 is a deficient number, since it is larger than the sum of its proper divisors (1).

268493 is an equidigital number, since it uses as much as digits as its factorization.

268493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 268493 is about 518.1631017354. The cubic root of 268493 is about 64.5125669082.

The spelling of 268493 in words is "two hundred sixty-eight thousand, four hundred ninety-three".