2064865 has 12 divisors (see below), whose sum is σ = 2724372. Its totient is φ = 1501280.

The previous prime is 2064857. The next prime is 2064877. The reversal of 2064865 is 5684602.

It can be written as a sum of positive squares in 2 ways, for example, as 1437601 + 627264 = 1199^2 + 792^2 .

It is not a de Polignac number, because 2064865 - 2³ = 2064857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1102 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (227031).

2^2064865 is an apocalyptic number.

It is an amenable number.

2064865 is a deficient number, since it is larger than the sum of its proper divisors (659507).

2064865 is a wasteful number, since it uses less digits than its factorization.

2064865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440 (or 3429 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2064865 is about 1436.9638130447. The cubic root of 2064865 is about 127.3397191380.

The spelling of 2064865 in words is "two million, sixty-four thousand, eight hundred sixty-five".