262609 has 4 divisors (see below), whose sum is σ = 267120. Its totient is φ = 258100.

The previous prime is 262597. The next prime is 262621. The reversal of 262609 is 906262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (262597) and next prime (262621).

It is a cyclic number.

It is not a de Polignac number, because 262609 - 2¹⁵ = 229841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (262649) 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, 2167 + ... + 2284.

It is an arithmetic number, because the mean of its divisors is an integer number (66780).

2²⁶²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

262609 is a deficient number, since it is larger than the sum of its proper divisors (4511).

262609 is an equidigital number, since it uses as much as digits as its factorization.

262609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 262609 is about 512.4539003657. The cubic root of 262609 is about 64.0378194439.

The spelling of 262609 in words is "two hundred sixty-two thousand, six hundred nine".