20209883 has 2 divisors, whose sum is σ = 20209884. Its totient is φ = 20209882.

The previous prime is 20209841. The next prime is 20209909. The reversal of 20209883 is 38890202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20209883 - 2¹⁶ = 20144347 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20200883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10104941 + 10104942.

It is an arithmetic number, because the mean of its divisors is an integer number (10104942).

Almost surely, 2^20209883 is an apocalyptic number.

20209883 is a deficient number, since it is larger than the sum of its proper divisors (1).

20209883 is an equidigital number, since it uses as much as digits as its factorization.

20209883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 20209883 is about 4495.5403457204. The cubic root of 20209883 is about 272.3879762864.

The spelling of 20209883 in words is "twenty million, two hundred nine thousand, eight hundred eighty-three".