268000493 has 2 divisors, whose sum is σ = 268000494. Its totient is φ = 268000492.

The previous prime is 268000463. The next prime is 268000501. The reversal of 268000493 is 394000862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255904009 + 12096484 = 15997^2 + 3478^2 .

It is a cyclic number.

It is not a de Polignac number, because 268000493 - 2⁶ = 268000429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268000423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134000246 + 134000247.

It is an arithmetic number, because the mean of its divisors is an integer number (134000247).

Almost surely, 2^268000493 is an apocalyptic number.

It is an amenable number.

268000493 is a deficient number, since it is larger than the sum of its proper divisors (1).

268000493 is an equidigital number, since it uses as much as digits as its factorization.

268000493 is an evil number, because the sum of its binary digits is even.

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

The square root of 268000493 is about 16370.7206011220. The cubic root of 268000493 is about 644.7309680650.

The spelling of 268000493 in words is "two hundred sixty-eight million, four hundred ninety-three", and thus it is an aban number.