2064591 has 6 divisors (see below), whose sum is σ = 2982200. Its totient is φ = 1376388.

The previous prime is 2064589. The next prime is 2064611. The reversal of 2064591 is 1954602.

2064591 is a `hidden beast` number, since 206 + 459 + 1 = 666.

It is not a de Polignac number, because 2064591 - 2¹ = 2064589 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114691 + ... + 114708.

2^2064591 is an apocalyptic number.

2064591 is a deficient number, since it is larger than the sum of its proper divisors (917609).

2064591 is a wasteful number, since it uses less digits than its factorization.

2064591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229405 (or 229402 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2064591 is about 1436.8684699721. The cubic root of 2064591 is about 127.3340863845.

It can be divided in two parts, 20645 and 91, that added together give a 4-th power (20736 = 12⁴).

The spelling of 2064591 in words is "two million, sixty-four thousand, five hundred ninety-one".