2064866 has 4 divisors (see below), whose sum is σ = 3097302. Its totient is φ = 1032432.

The previous prime is 2064857. The next prime is 2064877. The reversal of 2064866 is 6684602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6684602 = 2 ⋅3342301.

It can be written as a sum of positive squares in only one way, i.e., 1635841 + 429025 = 1279^2 + 655^2 .

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 as a sum of consecutive naturals, namely, 516215 + ... + 516218.

2^2064866 is an apocalyptic number.

2064866 is a deficient number, since it is larger than the sum of its proper divisors (1032436).

2064866 is a wasteful number, since it uses less digits than its factorization.

2064866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032435.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 2064866 is about 1436.9641610005. The cubic root of 2064866 is about 127.3397396946.

The spelling of 2064866 in words is "two million, sixty-four thousand, eight hundred sixty-six".