20704383 has 16 divisors (see below), whose sum is σ = 35055360. Its totient is φ = 11830968.

The previous prime is 20704379. The next prime is 20704403. The reversal of 20704383 is 38340702.

It is not a de Polignac number, because 20704383 - 2² = 20704379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20704183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54585 + ... + 54962.

It is an arithmetic number, because the mean of its divisors is an integer number (2190960).

Almost surely, 2^20704383 is an apocalyptic number.

20704383 is a deficient number, since it is larger than the sum of its proper divisors (14350977).

20704383 is a wasteful number, since it uses less digits than its factorization.

20704383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109563 (or 109557 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20704383 is about 4550.2069183720. The cubic root of 20704383 is about 274.5917158961.

The spelling of 20704383 in words is "twenty million, seven hundred four thousand, three hundred eighty-three".