20873883 has 16 divisors (see below), whose sum is σ = 28717056. Its totient is φ = 13476960.

The previous prime is 20873869. The next prime is 20873887. The reversal of 20873883 is 38837802.

It is a happy number.

It is not a de Polignac number, because 20873883 - 2⁹ = 20873371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20873887) 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, 42268 + ... + 42758.

It is an arithmetic number, because the mean of its divisors is an integer number (1794816).

Almost surely, 2^20873883 is an apocalyptic number.

20873883 is a deficient number, since it is larger than the sum of its proper divisors (7843173).

20873883 is a wasteful number, since it uses less digits than its factorization.

20873883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 20873883 is about 4568.7944799476. The cubic root of 20873883 is about 275.3390111074.

The spelling of 20873883 in words is "twenty million, eight hundred seventy-three thousand, eight hundred eighty-three".