2064389 has 2 divisors, whose sum is σ = 2064390. Its totient is φ = 2064388.

The previous prime is 2064379. The next prime is 2064421. The reversal of 2064389 is 9834602.

It is an a-pointer prime, because the next prime (2064421) can be obtained adding 2064389 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 187489 = 1370^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064389 - 2⁴ = 2064373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2064329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032194 + 1032195.

It is an arithmetic number, because the mean of its divisors is an integer number (1032195).

2^2064389 is an apocalyptic number.

It is an amenable number.

2064389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064389 is an equidigital number, since it uses as much as digits as its factorization.

2064389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2064389 is about 1436.7981765022. The cubic root of 2064389 is about 127.3299334515.

The spelling of 2064389 in words is "two million, sixty-four thousand, three hundred eighty-nine".