20964059 has 2 divisors, whose sum is σ = 20964060. Its totient is φ = 20964058.

The previous prime is 20964037. The next prime is 20964103. The reversal of 20964059 is 95046902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20964059 - 2²⁴ = 4186843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20967059) 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, 10482029 + 10482030.

It is an arithmetic number, because the mean of its divisors is an integer number (10482030).

Almost surely, 2^20964059 is an apocalyptic number.

20964059 is a deficient number, since it is larger than the sum of its proper divisors (1).

20964059 is an equidigital number, since it uses as much as digits as its factorization.

20964059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 20964059 is about 4578.6525310401. The cubic root of 20964059 is about 275.7349333257.

It can be divided in two parts, 209 and 64059, that multiplied together give a palindrome (13388331).

The spelling of 20964059 in words is "twenty million, nine hundred sixty-four thousand, fifty-nine".