264415 has 4 divisors (see below), whose sum is σ = 317304. Its totient is φ = 211528.

The previous prime is 264403. The next prime is 264437. The reversal of 264415 is 514462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264415 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26437 + ... + 26446.

It is an arithmetic number, because the mean of its divisors is an integer number (79326).

2²⁶⁴⁴¹⁵ is an apocalyptic number.

264415 is a deficient number, since it is larger than the sum of its proper divisors (52889).

264415 is an equidigital number, since it uses as much as digits as its factorization.

264415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52888.

The product of its digits is 960, while the sum is 22.

The square root of 264415 is about 514.2129908900. The cubic root of 264415 is about 64.1842833135.

Adding to 264415 its reverse (514462), we get a palindrome (778877).

Subtracting 264415 from its reverse (514462), we obtain a cube (250047 = 63³).

The spelling of 264415 in words is "two hundred sixty-four thousand, four hundred fifteen".