268986 has 16 divisors (see below), whose sum is σ = 543744. Its totient is φ = 88704.

The previous prime is 268979. The next prime is 268993. The reversal of 268986 is 689862.

It is an interprime number because it is at equal distance from previous prime (268979) and next prime (268993).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (33984).

2²⁶⁸⁹⁸⁶ is an apocalyptic number.

268986 is an abundant number, since it is smaller than the sum of its proper divisors (274758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268986 is a wasteful number, since it uses less digits than its factorization.

268986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its digits is 41472, while the sum is 39.

The square root of 268986 is about 518.6386024970. The cubic root of 268986 is about 64.5520282088.

It can be divided in two parts, 2689 and 86, that added together give a triangular number (2775 = T₇₄).

The spelling of 268986 in words is "two hundred sixty-eight thousand, nine hundred eighty-six".