264765 has 16 divisors (see below), whose sum is σ = 446400. Its totient is φ = 133632.

The previous prime is 264763. The next prime is 264769. The reversal of 264765 is 567462.

It is not a de Polignac number, because 264765 - 2¹ = 264763 is a prime.

It is a Curzon number.

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 264765.

It is not an unprimeable number, because it can be changed into a prime (264763) 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, 180 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (27900).

2²⁶⁴⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

264765 is a deficient number, since it is larger than the sum of its proper divisors (181635).

264765 is a wasteful number, since it uses less digits than its factorization.

264765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its digits is 10080, while the sum is 30.

The square root of 264765 is about 514.5532042462. The cubic root of 264765 is about 64.2125905761.

The spelling of 264765 in words is "two hundred sixty-four thousand, seven hundred sixty-five".