20881083 has 8 divisors (see below), whose sum is σ = 29479248. Its totient is φ = 13101824.

The previous prime is 20881067. The next prime is 20881097. The reversal of 20881083 is 38018802.

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

It is a cyclic number.

It is not a de Polignac number, because 20881083 - 2⁴ = 20881067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20881083.

It is not an unprimeable number, because it can be changed into a prime (20886083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204666 + ... + 204767.

It is an arithmetic number, because the mean of its divisors is an integer number (3684906).

Almost surely, 2^20881083 is an apocalyptic number.

20881083 is a deficient number, since it is larger than the sum of its proper divisors (8598165).

20881083 is a wasteful number, since it uses less digits than its factorization.

20881083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409453.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 20881083 is about 4569.5823660374. The cubic root of 20881083 is about 275.3706649048.

Adding to 20881083 its reverse (38018802), we get a palindrome (58899885).

The spelling of 20881083 in words is "twenty million, eight hundred eighty-one thousand, eighty-three".