20875833 has 16 divisors (see below), whose sum is σ = 33739200. Its totient is φ = 12651840.

The previous prime is 20875831. The next prime is 20875843. The reversal of 20875833 is 33857802.

It is not a de Polignac number, because 20875833 - 2¹ = 20875831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20875831) 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 15 ways as a sum of consecutive naturals, for example, 34848 + ... + 35441.

It is an arithmetic number, because the mean of its divisors is an integer number (2108700).

Almost surely, 2^20875833 is an apocalyptic number.

It is an amenable number.

20875833 is a deficient number, since it is larger than the sum of its proper divisors (12863367).

20875833 is a wasteful number, since it uses less digits than its factorization.

20875833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70309 (or 70303 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 20875833 is about 4569.0078791790. The cubic root of 20875833 is about 275.3475847295.

The spelling of 20875833 in words is "twenty million, eight hundred seventy-five thousand, eight hundred thirty-three".