2273965 has 8 divisors (see below), whose sum is σ = 2780568. Its totient is φ = 1784640.

The previous prime is 2273963. The next prime is 2273981. The reversal of 2273965 is 5693722.

It is a happy number.

2273965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5929 + 2268036 = 77^2 + 1506^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2273965 - 2¹ = 2273963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2273965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4026 + ... + 4555.

It is an arithmetic number, because the mean of its divisors is an integer number (347571).

2^2273965 is an apocalyptic number.

It is an amenable number.

2273965 is a deficient number, since it is larger than the sum of its proper divisors (506603).

2273965 is an equidigital number, since it uses as much as digits as its factorization.

2273965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8639.

The product of its digits is 22680, while the sum is 34.

The square root of 2273965 is about 1507.9671747091. The cubic root of 2273965 is about 131.5006578058.

The spelling of 2273965 in words is "two million, two hundred seventy-three thousand, nine hundred sixty-five".