264693 has 16 divisors (see below), whose sum is σ = 415296. Its totient is φ = 147840.

The previous prime is 264659. The next prime is 264697. The reversal of 264693 is 396462.

It is not a de Polignac number, because 264693 - 2⁸ = 264437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264697) 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, 121 + ... + 737.

It is an arithmetic number, because the mean of its divisors is an integer number (25956).

2²⁶⁴⁶⁹³ is an apocalyptic number.

It is an amenable number.

264693 is a deficient number, since it is larger than the sum of its proper divisors (150603).

264693 is a wasteful number, since it uses less digits than its factorization.

264693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its digits is 7776, while the sum is 30.

The square root of 264693 is about 514.4832358785. The cubic root of 264693 is about 64.2067694068.

Subtracting 264693 from its reverse (396462), we obtain a square (131769 = 363²).

The spelling of 264693 in words is "two hundred sixty-four thousand, six hundred ninety-three".