264999 has 8 divisors (see below), whose sum is σ = 403840. Its totient is φ = 151416.

The previous prime is 264997. The next prime is 265003. The reversal of 264999 is 999462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264999 - 2¹ = 264997 is a prime.

It is a Duffinian number.

264999 is a modest number, since divided by 999 gives 264 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 264999.

It is not an unprimeable number, because it can be changed into a prime (264991) 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, 6289 + ... + 6330.

It is an arithmetic number, because the mean of its divisors is an integer number (50480).

2²⁶⁴⁹⁹⁹ is an apocalyptic number.

264999 is a deficient number, since it is larger than the sum of its proper divisors (138841).

264999 is a wasteful number, since it uses less digits than its factorization.

264999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12629.

The product of its digits is 34992, while the sum is 39.

The square root of 264999 is about 514.7805357626. The cubic root of 264999 is about 64.2315020911.

The spelling of 264999 in words is "two hundred sixty-four thousand, nine hundred ninety-nine".