21883383 has 12 divisors (see below), whose sum is σ = 33273240. Its totient is φ = 13820976.

The previous prime is 21883363. The next prime is 21883397. The reversal of 21883383 is 38338812.

It is not a de Polignac number, because 21883383 - 2¹⁰ = 21882359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21883333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63816 + ... + 64157.

It is an arithmetic number, because the mean of its divisors is an integer number (2772770).

Almost surely, 2^21883383 is an apocalyptic number.

21883383 is a deficient number, since it is larger than the sum of its proper divisors (11389857).

21883383 is a wasteful number, since it uses less digits than its factorization.

21883383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127998 (or 127995 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 21883383 is about 4677.9678280211. The cubic root of 21883383 is about 279.7079565554.

The spelling of 21883383 in words is "twenty-one million, eight hundred eighty-three thousand, three hundred eighty-three".