20358983 has 2 divisors, whose sum is σ = 20358984. Its totient is φ = 20358982.

The previous prime is 20358967. The next prime is 20359019. The reversal of 20358983 is 38985302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20358983 - 2⁴ = 20358967 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20358083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10179491 + 10179492.

It is an arithmetic number, because the mean of its divisors is an integer number (10179492).

Almost surely, 2^20358983 is an apocalyptic number.

20358983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20358983 is an equidigital number, since it uses as much as digits as its factorization.

20358983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 20358983 is about 4512.0929733329. The cubic root of 20358983 is about 273.0561902703.

The spelling of 20358983 in words is "twenty million, three hundred fifty-eight thousand, nine hundred eighty-three".