264891 has 16 divisors (see below), whose sum is σ = 403200. Its totient is φ = 153120.

The previous prime is 264889. The next prime is 264893. The reversal of 264891 is 198462.

It is an interprime number because it is at equal distance from previous prime (264889) and next prime (264893).

It is not a de Polignac number, because 264891 - 2¹ = 264889 is a prime.

264891 is a modest number, since divided by 891 gives 264 as remainder.

It is not an unprimeable number, because it can be changed into a prime (264893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2²⁶⁴⁸⁹¹ is an apocalyptic number.

264891 is a deficient number, since it is larger than the sum of its proper divisors (138309).

264891 is a wasteful number, since it uses less digits than its factorization.

264891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its digits is 3456, while the sum is 30.

The square root of 264891 is about 514.6756260015. The cubic root of 264891 is about 64.2227750835. Note that the first 3 decimals are identical.

The spelling of 264891 in words is "two hundred sixty-four thousand, eight hundred ninety-one".