20358959 has 2 divisors, whose sum is σ = 20358960. Its totient is φ = 20358958.

The previous prime is 20358941. The next prime is 20358967. The reversal of 20358959 is 95985302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20358959 - 2²⁰ = 19310383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20358929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10179479 + 10179480.

It is an arithmetic number, because the mean of its divisors is an integer number (10179480).

Almost surely, 2^20358959 is an apocalyptic number.

20358959 is a deficient number, since it is larger than the sum of its proper divisors (1).

20358959 is an equidigital number, since it uses as much as digits as its factorization.

20358959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 20358959 is about 4512.0903138124. The cubic root of 20358959 is about 273.0560829736.

The spelling of 20358959 in words is "twenty million, three hundred fifty-eight thousand, nine hundred fifty-nine".