20098693 has 2 divisors, whose sum is σ = 20098694. Its totient is φ = 20098692.

The previous prime is 20098681. The next prime is 20098717. The reversal of 20098693 is 39689002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15000129 + 5098564 = 3873^2 + 2258^2 .

It is a cyclic number.

It is not a de Polignac number, because 20098693 - 2²¹ = 18001541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20098613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10049346 + 10049347.

It is an arithmetic number, because the mean of its divisors is an integer number (10049347).

Almost surely, 2^20098693 is an apocalyptic number.

It is an amenable number.

20098693 is a deficient number, since it is larger than the sum of its proper divisors (1).

20098693 is an equidigital number, since it uses as much as digits as its factorization.

20098693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 20098693 is about 4483.1565888334. The cubic root of 20098693 is about 271.8875192720.

The spelling of 20098693 in words is "twenty million, ninety-eight thousand, six hundred ninety-three".