264605 has 16 divisors (see below), whose sum is σ = 368064. Its totient is φ = 180480.

The previous prime is 264601. The next prime is 264619. The reversal of 264605 is 506462.

It is not a de Polignac number, because 264605 - 2² = 264601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264601) 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, 794 + ... + 1076.

It is an arithmetic number, because the mean of its divisors is an integer number (23004).

2²⁶⁴⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

264605 is a deficient number, since it is larger than the sum of its proper divisors (103459).

264605 is a wasteful number, since it uses less digits than its factorization.

264605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 264605 is about 514.3977060602. The cubic root of 264605 is about 64.1996532106.

Adding to 264605 its sum of digits (23), we get a triangular number (264628 = T₇₂₇).

The spelling of 264605 in words is "two hundred sixty-four thousand, six hundred five".