265876 has 12 divisors (see below), whose sum is σ = 501172. Its totient is φ = 122688.

The previous prime is 265873. The next prime is 265883. The reversal of 265876 is 678562.

It can be written as a sum of positive squares in 2 ways, for example, as 15876 + 250000 = 126^2 + 500^2 .

It is a d-powerful number, because it can be written as 2² + 6 + 8⁶ + 5² + 7⁴ + 6⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505 + ... + 2608.

2²⁶⁵⁸⁷⁶ is an apocalyptic number.

265876 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

265876 is a deficient number, since it is larger than the sum of its proper divisors (235296).

265876 is a wasteful number, since it uses less digits than its factorization.

265876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130 (or 5128 counting only the distinct ones).

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

The square root of 265876 is about 515.6316514723. The cubic root of 265876 is about 64.3022809743.

Subtracting 265876 from its reverse (678562), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 265876 in words is "two hundred sixty-five thousand, eight hundred seventy-six".