2063909 has 2 divisors, whose sum is σ = 2063910. Its totient is φ = 2063908.

The previous prime is 2063903. The next prime is 2063917. The reversal of 2063909 is 9093602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 386884 = 1295^2 + 622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2063909 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2063903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031954 + 1031955.

It is an arithmetic number, because the mean of its divisors is an integer number (1031955).

2^2063909 is an apocalyptic number.

It is an amenable number.

2063909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2063909 is an equidigital number, since it uses as much as digits as its factorization.

2063909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 2063909 is about 1436.6311287175. The cubic root of 2063909 is about 127.3200640090.

The spelling of 2063909 in words is "two million, sixty-three thousand, nine hundred nine".