264863 has 4 divisors (see below), whose sum is σ = 266568. Its totient is φ = 263160.

The previous prime is 264839. The next prime is 264871. The reversal of 264863 is 368462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368462 = 2 ⋅184231.

It is a cyclic number.

It is not a de Polignac number, because 264863 - 2¹⁸ = 2719 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 6 + 8 + 4⁹ + 6 + 3⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (66642).

2²⁶⁴⁸⁶³ is an apocalyptic number.

264863 is a deficient number, since it is larger than the sum of its proper divisors (1705).

264863 is a wasteful number, since it uses less digits than its factorization.

264863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its digits is 6912, while the sum is 29.

The square root of 264863 is about 514.6484236836. The cubic root of 264863 is about 64.2205121388.

The spelling of 264863 in words is "two hundred sixty-four thousand, eight hundred sixty-three".