20098959 has 8 divisors (see below), whose sum is σ = 27100080. Its totient is φ = 13248576.

The previous prime is 20098957. The next prime is 20098963. The reversal of 20098959 is 95989002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20098959 - 2¹ = 20098957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20098959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20098957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37372 + ... + 37905.

It is an arithmetic number, because the mean of its divisors is an integer number (3387510).

Almost surely, 2^20098959 is an apocalyptic number.

20098959 is a deficient number, since it is larger than the sum of its proper divisors (7001121).

20098959 is an equidigital number, since it uses as much as digits as its factorization.

20098959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75369.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 20098959 is about 4483.1862553322. The cubic root of 20098959 is about 271.8887187159. Note that the first 3 decimals are identical.

The spelling of 20098959 in words is "twenty million, ninety-eight thousand, nine hundred fifty-nine".