265397 has 8 divisors (see below), whose sum is σ = 302400. Its totient is φ = 230560.

The previous prime is 265381. The next prime is 265399. The reversal of 265397 is 793562.

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

It is not a de Polignac number, because 265397 - 2⁴ = 265381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265399) 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, 272 + ... + 777.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2²⁶⁵³⁹⁷ is an apocalyptic number.

It is an amenable number.

265397 is a deficient number, since it is larger than the sum of its proper divisors (37003).

265397 is a wasteful number, since it uses less digits than its factorization.

265397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083.

The product of its digits is 11340, while the sum is 32.

The square root of 265397 is about 515.1669632265. The cubic root of 265397 is about 64.2636422756.

The spelling of 265397 in words is "two hundred sixty-five thousand, three hundred ninety-seven".