21482927 has 2 divisors, whose sum is σ = 21482928. Its totient is φ = 21482926.

The previous prime is 21482899. The next prime is 21482941. The reversal of 21482927 is 72928412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21482927 - 2¹⁸ = 21220783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21482987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10741463 + 10741464.

It is an arithmetic number, because the mean of its divisors is an integer number (10741464).

Almost surely, 2^21482927 is an apocalyptic number.

21482927 is a deficient number, since it is larger than the sum of its proper divisors (1).

21482927 is an equidigital number, since it uses as much as digits as its factorization.

21482927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 21482927 is about 4634.9678531787. The cubic root of 21482927 is about 277.9912657056.

The spelling of 21482927 in words is "twenty-one million, four hundred eighty-two thousand, nine hundred twenty-seven".