20198773 has 8 divisors (see below), whose sum is σ = 23647680. Its totient is φ = 16890720.

The previous prime is 20198753. The next prime is 20198779. The reversal of 20198773 is 37789102.

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

It is not a de Polignac number, because 20198773 - 2⁵ = 20198741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20198779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34903 + ... + 35476.

It is an arithmetic number, because the mean of its divisors is an integer number (2955960).

Almost surely, 2^20198773 is an apocalyptic number.

It is an amenable number.

20198773 is a deficient number, since it is larger than the sum of its proper divisors (3448907).

20198773 is an equidigital number, since it uses as much as digits as its factorization.

20198773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70427.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 20198773 is about 4494.3045068175. The cubic root of 20198773 is about 272.3380537621.

The spelling of 20198773 in words is "twenty million, one hundred ninety-eight thousand, seven hundred seventy-three".