268337891 has 8 divisors (see below), whose sum is σ = 277324800. Its totient is φ = 259371720.

The previous prime is 268337879. The next prime is 268337903. The reversal of 268337891 is 198733862.

It is an interprime number because it is at equal distance from previous prime (268337879) and next prime (268337903).

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 268337891 - 2¹⁸ = 268075747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268337851) 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, 23780 + ... + 33198.

It is an arithmetic number, because the mean of its divisors is an integer number (34665600).

Almost surely, 2^268337891 is an apocalyptic number.

268337891 is a deficient number, since it is larger than the sum of its proper divisors (8986909).

268337891 is an equidigital number, since it uses as much as digits as its factorization.

268337891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10369.

The product of its digits is 435456, while the sum is 47.

The square root of 268337891 is about 16381.0222818968. The cubic root of 268337891 is about 645.0014149760.

The spelling of 268337891 in words is "two hundred sixty-eight million, three hundred thirty-seven thousand, eight hundred ninety-one".