2065399 has 12 divisors (see below), whose sum is σ = 2445528. Its totient is φ = 1738800.

The previous prime is 2065397. The next prime is 2065411. The reversal of 2065399 is 9935602.

It is a happy number.

It is not a de Polignac number, because 2065399 - 2¹ = 2065397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2644 + ... + 3334.

It is an arithmetic number, because the mean of its divisors is an integer number (203794).

2^2065399 is an apocalyptic number.

2065399 is a deficient number, since it is larger than the sum of its proper divisors (380129).

2065399 is an equidigital number, since it uses as much as digits as its factorization.

2065399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 2065399 is about 1437.1496094701. The cubic root of 2065399 is about 127.3506954083.

The spelling of 2065399 in words is "two million, sixty-five thousand, three hundred ninety-nine".