20793089 has 4 divisors (see below), whose sum is σ = 20856240. Its totient is φ = 20729940.

The previous prime is 20793083. The next prime is 20793103. The reversal of 20793089 is 98039702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20793089 - 2²⁰ = 19744513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20793083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31079 + ... + 31740.

It is an arithmetic number, because the mean of its divisors is an integer number (5214060).

Almost surely, 2^20793089 is an apocalyptic number.

It is an amenable number.

20793089 is a deficient number, since it is larger than the sum of its proper divisors (63151).

20793089 is an equidigital number, since it uses as much as digits as its factorization.

20793089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63150.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 20793089 is about 4559.9439689540. The cubic root of 20793089 is about 274.9833113840.

The spelling of 20793089 in words is "twenty million, seven hundred ninety-three thousand, eighty-nine".