20339611 has 2 divisors, whose sum is σ = 20339612. Its totient is φ = 20339610.

The previous prime is 20339609. The next prime is 20339621. The reversal of 20339611 is 11693302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20339611 - 2¹ = 20339609 is a prime.

Together with 20339609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20339621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10169805 + 10169806.

It is an arithmetic number, because the mean of its divisors is an integer number (10169806).

Almost surely, 2^20339611 is an apocalyptic number.

20339611 is a deficient number, since it is larger than the sum of its proper divisors (1).

20339611 is an equidigital number, since it uses as much as digits as its factorization.

20339611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 20339611 is about 4509.9457868139. The cubic root of 20339611 is about 272.9695565528.

The spelling of 20339611 in words is "twenty million, three hundred thirty-nine thousand, six hundred eleven".