265867 has 8 divisors (see below), whose sum is σ = 320000. Its totient is φ = 215784.

The previous prime is 265861. The next prime is 265871. The reversal of 265867 is 768562.

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

It is a cyclic number.

It is not a de Polignac number, because 265867 - 2⁷ = 265739 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265861) 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, 867 + ... + 1132.

It is an arithmetic number, because the mean of its divisors is an integer number (40000).

2²⁶⁵⁸⁶⁷ is an apocalyptic number.

265867 is a deficient number, since it is larger than the sum of its proper divisors (54133).

265867 is a wasteful number, since it uses less digits than its factorization.

265867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025.

The product of its digits is 20160, while the sum is 34.

The square root of 265867 is about 515.6229242382. The cubic root of 265867 is about 64.3015554142.

The spelling of 265867 in words is "two hundred sixty-five thousand, eight hundred sixty-seven".