21792327 has 8 divisors (see below), whose sum is σ = 29184240. Its totient is φ = 14464320.

The previous prime is 21792313. The next prime is 21792341. The reversal of 21792327 is 72329712.

It is an interprime number because it is at equal distance from previous prime (21792313) and next prime (21792341).

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

It is not a de Polignac number, because 21792327 - 2⁶ = 21792263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21792307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15174 + ... + 16547.

It is an arithmetic number, because the mean of its divisors is an integer number (3648030).

Almost surely, 2^21792327 is an apocalyptic number.

21792327 is a deficient number, since it is larger than the sum of its proper divisors (7391913).

21792327 is a wasteful number, since it uses less digits than its factorization.

21792327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31953.

The product of its digits is 10584, while the sum is 33.

The square root of 21792327 is about 4668.2252516347. The cubic root of 21792327 is about 279.3194655116.

The spelling of 21792327 in words is "twenty-one million, seven hundred ninety-two thousand, three hundred twenty-seven".