2246665 has 4 divisors (see below), whose sum is σ = 2696004. Its totient is φ = 1797328.

The previous prime is 2246641. The next prime is 2246683. The reversal of 2246665 is 5666422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5666422 = 2 ⋅2833211.

It can be written as a sum of positive squares in 2 ways, for example, as 944784 + 1301881 = 972^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 2246665 - 2⁵ = 2246633 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 224662 + ... + 224671.

It is an arithmetic number, because the mean of its divisors is an integer number (674001).

2^2246665 is an apocalyptic number.

It is an amenable number.

2246665 is a deficient number, since it is larger than the sum of its proper divisors (449339).

2246665 is an equidigital number, since it uses as much as digits as its factorization.

2246665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449338.

The product of its digits is 17280, while the sum is 31.

The square root of 2246665 is about 1498.8879210935. The cubic root of 2246665 is about 130.9722956778.

It can be divided in two parts, 224 and 6665, that added together give a square (6889 = 83²).

The spelling of 2246665 in words is "two million, two hundred forty-six thousand, six hundred sixty-five".