20763089 has 8 divisors (see below), whose sum is σ = 21750720. Its totient is φ = 19782576.

The previous prime is 20763047. The next prime is 20763091. The reversal of 20763089 is 98036702.

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

It is a de Polignac number, because none of the positive numbers 2^k-20763089 is a prime.

It is a super-2 number, since 2×20763089² = 862211729643842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20763019) 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, 4742 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (2718840).

Almost surely, 2^20763089 is an apocalyptic number.

It is an amenable number.

20763089 is a deficient number, since it is larger than the sum of its proper divisors (987631).

20763089 is a wasteful number, since it uses less digits than its factorization.

20763089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 20763089 is about 4556.6532674760. The cubic root of 20763089 is about 274.8510002757.

The spelling of 20763089 in words is "twenty million, seven hundred sixty-three thousand, eighty-nine".