865463 has 4 divisors (see below), whose sum is σ = 869568. Its totient is φ = 861360.

The previous prime is 865457. The next prime is 865477. The reversal of 865463 is 364568.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 865463 - 2¹⁰ = 864439 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 (865483) 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, 1718 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (217392).

2⁸⁶⁵⁴⁶³ is an apocalyptic number.

865463 is a deficient number, since it is larger than the sum of its proper divisors (4105).

865463 is a wasteful number, since it uses less digits than its factorization.

865463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104.

The product of its digits is 17280, while the sum is 32.

The square root of 865463 is about 930.3026389299. The cubic root of 865463 is about 95.2977913162.

The spelling of 865463 in words is "eight hundred sixty-five thousand, four hundred sixty-three".