20959703 has 2 divisors, whose sum is σ = 20959704. Its totient is φ = 20959702.

The previous prime is 20959667. The next prime is 20959711. The reversal of 20959703 is 30795902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20959703 - 2⁶ = 20959639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20959303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10479851 + 10479852.

It is an arithmetic number, because the mean of its divisors is an integer number (10479852).

Almost surely, 2^20959703 is an apocalyptic number.

20959703 is a deficient number, since it is larger than the sum of its proper divisors (1).

20959703 is an equidigital number, since it uses as much as digits as its factorization.

20959703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 20959703 is about 4578.1768205258. The cubic root of 20959703 is about 275.7158342163.

The spelling of 20959703 in words is "twenty million, nine hundred fifty-nine thousand, seven hundred three".