944665 has 4 divisors (see below), whose sum is σ = 1133604. Its totient is φ = 755728.

The previous prime is 944659. The next prime is 944677. The reversal of 944665 is 566449.

944665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566449 = 13 ⋅43573.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 259081 = 828^2 + 509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-944665 is a prime.

It is a Duffinian number.

944665 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 944665.

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, 94462 + ... + 94471.

It is an arithmetic number, because the mean of its divisors is an integer number (283401).

2⁹⁴⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

944665 is a deficient number, since it is larger than the sum of its proper divisors (188939).

944665 is a wasteful number, since it uses less digits than its factorization.

944665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188938.

The product of its digits is 25920, while the sum is 34.

The square root of 944665 is about 971.9387840806. The cubic root of 944665 is about 98.1203920916.

It can be divided in two parts, 944 and 665, that multiplied together give a triangular number (627760 = T₁₁₂₀).

The spelling of 944665 in words is "nine hundred forty-four thousand, six hundred sixty-five".