264813 has 8 divisors (see below), whose sum is σ = 356928. Its totient is φ = 174624.

The previous prime is 264811. The next prime is 264827. The reversal of 264813 is 318462.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264813 - 2¹ = 264811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120 + ... + 737.

It is an arithmetic number, because the mean of its divisors is an integer number (44616).

2²⁶⁴⁸¹³ is an apocalyptic number.

It is an amenable number.

264813 is a deficient number, since it is larger than the sum of its proper divisors (92115).

264813 is a wasteful number, since it uses less digits than its factorization.

264813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963.

The product of its digits is 1152, while the sum is 24.

The square root of 264813 is about 514.5998445394. The cubic root of 264813 is about 64.2164707694.

The spelling of 264813 in words is "two hundred sixty-four thousand, eight hundred thirteen".