20596091 has 2 divisors, whose sum is σ = 20596092. Its totient is φ = 20596090.

The previous prime is 20596073. The next prime is 20596111. The reversal of 20596091 is 19069502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20596091 - 2¹⁸ = 20333947 is a prime.

It is not a weakly prime, because it can be changed into another prime (20536091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10298045 + 10298046.

It is an arithmetic number, because the mean of its divisors is an integer number (10298046).

Almost surely, 2^20596091 is an apocalyptic number.

20596091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20596091 is an equidigital number, since it uses as much as digits as its factorization.

20596091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 20596091 is about 4538.2916389320. The cubic root of 20596091 is about 274.1121381976.

The spelling of 20596091 in words is "twenty million, five hundred ninety-six thousand, ninety-one".