485865 has 32 divisors (see below), whose sum is σ = 892800. Its totient is φ = 250560.

The previous prime is 485833. The next prime is 485893. The reversal of 485865 is 568584.

It is a happy number.

It is not a de Polignac number, because 485865 - 2⁵ = 485833 is a prime.

It is an Ulam number.

Its product of digits (38400) is a multiple of the sum of its prime divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7935 + ... + 7995.

It is an arithmetic number, because the mean of its divisors is an integer number (27900).

2⁴⁸⁵⁸⁶⁵ is an apocalyptic number.

485865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

485865 is a deficient number, since it is larger than the sum of its proper divisors (406935).

485865 is a wasteful number, since it uses less digits than its factorization.

485865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 128 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 485865 is about 697.0401710088. The cubic root of 485865 is about 78.6149613149.

The spelling of 485865 in words is "four hundred eighty-five thousand, eight hundred sixty-five".