264663 has 12 divisors (see below), whose sum is σ = 437008. Its totient is φ = 151200.

The previous prime is 264659. The next prime is 264697. The reversal of 264663 is 366462.

It is not a de Polignac number, because 264663 - 2² = 264659 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹¹ + 6 + 6 + 4⁹ + 6³ + 3⁵ .

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2038 + ... + 2163.

2²⁶⁴⁶⁶³ is an apocalyptic number.

264663 is a deficient number, since it is larger than the sum of its proper divisors (172345).

264663 is a wasteful number, since it uses less digits than its factorization.

264663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214 (or 4211 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 264663 is about 514.4540795834. The cubic root of 264663 is about 64.2043436081.

The spelling of 264663 in words is "two hundred sixty-four thousand, six hundred sixty-three".