21058067 has 2 divisors, whose sum is σ = 21058068. Its totient is φ = 21058066.

The previous prime is 21058057. The next prime is 21058111. The reversal of 21058067 is 76085012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21058067 - 2¹⁸ = 20795923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21058027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10529033 + 10529034.

It is an arithmetic number, because the mean of its divisors is an integer number (10529034).

Almost surely, 2^21058067 is an apocalyptic number.

21058067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21058067 is an equidigital number, since it uses as much as digits as its factorization.

21058067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 21058067 is about 4588.9069504622. The cubic root of 21058067 is about 276.1464732226.

The spelling of 21058067 in words is "twenty-one million, fifty-eight thousand, sixty-seven".