21884027 has 8 divisors (see below), whose sum is σ = 24176640. Its totient is φ = 19641960.

The previous prime is 21884011. The next prime is 21884041. The reversal of 21884027 is 72048812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21884027 - 2⁴ = 21884011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21883984 and 21884002.

It is not an unprimeable number, because it can be changed into a prime (21884227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11723 + ... + 13460.

It is an arithmetic number, because the mean of its divisors is an integer number (3022080).

Almost surely, 2^21884027 is an apocalyptic number.

21884027 is a deficient number, since it is larger than the sum of its proper divisors (2292613).

21884027 is a wasteful number, since it uses less digits than its factorization.

21884027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25273.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 21884027 is about 4678.0366608226. The cubic root of 21884027 is about 279.7107003444.

The spelling of 21884027 in words is "twenty-one million, eight hundred eighty-four thousand, twenty-seven".