20594923 has 2 divisors, whose sum is σ = 20594924. Its totient is φ = 20594922.

The previous prime is 20594911. The next prime is 20594927. The reversal of 20594923 is 32949502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20594923 - 2⁵ = 20594891 is a prime.

It is not a weakly prime, because it can be changed into another prime (20594927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10297461 + 10297462.

It is an arithmetic number, because the mean of its divisors is an integer number (10297462).

Almost surely, 2^20594923 is an apocalyptic number.

20594923 is a deficient number, since it is larger than the sum of its proper divisors (1).

20594923 is an equidigital number, since it uses as much as digits as its factorization.

20594923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 20594923 is about 4538.1629543241. The cubic root of 20594923 is about 274.1069564857.

The spelling of 20594923 in words is "twenty million, five hundred ninety-four thousand, nine hundred twenty-three".