21933327 has 12 divisors (see below), whose sum is σ = 31667784. Its totient is φ = 13497120.

The previous prime is 21933293. The next prime is 21933347. The reversal of 21933327 is 72333912.

It is not a de Polignac number, because 21933327 - 2¹² = 21929231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21933294 and 21933303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21933347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21124 + ... + 22137.

It is an arithmetic number, because the mean of its divisors is an integer number (2638982).

Almost surely, 2^21933327 is an apocalyptic number.

21933327 is a deficient number, since it is larger than the sum of its proper divisors (9734457).

21933327 is a wasteful number, since it uses less digits than its factorization.

21933327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43290 (or 43277 counting only the distinct ones).

The product of its digits is 6804, while the sum is 30.

The square root of 21933327 is about 4683.3030010880. The cubic root of 21933327 is about 279.9205854715.

The spelling of 21933327 in words is "twenty-one million, nine hundred thirty-three thousand, three hundred twenty-seven".