20832889 has 12 divisors (see below), whose sum is σ = 26437968. Its totient is φ = 16233000.

The previous prime is 20832881. The next prime is 20832901. The reversal of 20832889 is 98823802.

It is not a de Polignac number, because 20832889 - 2³ = 20832881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20832881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18787 + ... + 19864.

It is an arithmetic number, because the mean of its divisors is an integer number (2203164).

Almost surely, 2^20832889 is an apocalyptic number.

It is an amenable number.

20832889 is a deficient number, since it is larger than the sum of its proper divisors (5605079).

20832889 is a wasteful number, since it uses less digits than its factorization.

20832889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38676 (or 38669 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 20832889 is about 4564.3059713389. The cubic root of 20832889 is about 275.1586478522.

The spelling of 20832889 in words is "twenty million, eight hundred thirty-two thousand, eight hundred eighty-nine".