20854383 has 16 divisors (see below), whose sum is σ = 30527616. Its totient is φ = 12558240.

The previous prime is 20854369. The next prime is 20854397. The reversal of 20854383 is 38345802.

It is an interprime number because it is at equal distance from previous prime (20854369) and next prime (20854397).

It is not a de Polignac number, because 20854383 - 2⁶ = 20854319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20854313) 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, 3441 + ... + 7317.

It is an arithmetic number, because the mean of its divisors is an integer number (1907976).

Almost surely, 2^20854383 is an apocalyptic number.

20854383 is a deficient number, since it is larger than the sum of its proper divisors (9673233).

20854383 is a wasteful number, since it uses less digits than its factorization.

20854383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 20854383 is about 4566.6599391678. The cubic root of 20854383 is about 275.2532455043.

The spelling of 20854383 in words is "twenty million, eight hundred fifty-four thousand, three hundred eighty-three".