265798 has 8 divisors (see below), whose sum is σ = 429408. Its totient is φ = 122664.

The previous prime is 265787. The next prime is 265807. The reversal of 265798 is 897562.

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

It is a congruent number.

It is an unprimeable number.

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, 5086 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (53676).

2²⁶⁵⁷⁹⁸ is an apocalyptic number.

265798 is a deficient number, since it is larger than the sum of its proper divisors (163610).

265798 is a wasteful number, since it uses less digits than its factorization.

265798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238.

The product of its digits is 30240, while the sum is 37.

The square root of 265798 is about 515.5560105362. The cubic root of 265798 is about 64.2959922426.

The spelling of 265798 in words is "two hundred sixty-five thousand, seven hundred ninety-eight".