268872859 has 2 divisors, whose sum is σ = 268872860. Its totient is φ = 268872858.

The previous prime is 268872847. The next prime is 268872887. The reversal of 268872859 is 958278862.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268872859 - 2⁹ = 268872347 is a prime.

It is a super-2 number, since 2×268872859² = 144585228613667762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (268872899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134436429 + 134436430.

It is an arithmetic number, because the mean of its divisors is an integer number (134436430).

Almost surely, 2^268872859 is an apocalyptic number.

268872859 is a deficient number, since it is larger than the sum of its proper divisors (1).

268872859 is an equidigital number, since it uses as much as digits as its factorization.

268872859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 55.

The square root of 268872859 is about 16397.3430469695. The cubic root of 268872859 is about 645.4297630618.

The spelling of 268872859 in words is "two hundred sixty-eight million, eight hundred seventy-two thousand, eight hundred fifty-nine".