264921 has 8 divisors (see below), whose sum is σ = 355680. Its totient is φ = 175392.

The previous prime is 264919. The next prime is 264931. The reversal of 264921 is 129462.

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

It is not a de Polignac number, because 264921 - 2¹ = 264919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264891 and 264900.

It is not an unprimeable number, because it can be changed into a prime (264931) 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, 510 + ... + 888.

It is an arithmetic number, because the mean of its divisors is an integer number (44460).

2²⁶⁴⁹²¹ is an apocalyptic number.

It is an amenable number.

264921 is a deficient number, since it is larger than the sum of its proper divisors (90759).

264921 is a wasteful number, since it uses less digits than its factorization.

264921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

The product of its digits is 864, while the sum is 24.

The square root of 264921 is about 514.7047697467. The cubic root of 264921 is about 64.2251994902.

The spelling of 264921 in words is "two hundred sixty-four thousand, nine hundred twenty-one".