44665 has 4 divisors (see below), whose sum is σ = 53604. Its totient is φ = 35728.

The previous prime is 44657. The next prime is 44683. The reversal of 44665 is 56644.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13689 + 30976 = 117^2 + 176^2 .

It is a cyclic number.

It is not a de Polignac number, because 44665 - 2³ = 44657 is a prime.

It is a super-3 number, since 3×44665³ = 267314963338875, which contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4462 + ... + 4471.

It is an arithmetic number, because the mean of its divisors is an integer number (13401).

2⁴⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

44665 is a deficient number, since it is larger than the sum of its proper divisors (8939).

44665 is an equidigital number, since it uses as much as digits as its factorization.

44665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8938.

The product of its digits is 2880, while the sum is 25.

The square root of 44665 is about 211.3409567500. The cubic root of 44665 is about 35.4804494613.

The spelling of 44665 in words is "forty-four thousand, six hundred sixty-five".