21367067 has 2 divisors, whose sum is σ = 21367068. Its totient is φ = 21367066.

The previous prime is 21367061. The next prime is 21367111. The reversal of 21367067 is 76076312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21367067 - 2¹⁴ = 21350683 is a prime.

It is a Chen prime.

It is equal to p_1351697 and since 21367067 and 1351697 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (21367061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10683533 + 10683534.

It is an arithmetic number, because the mean of its divisors is an integer number (10683534).

Almost surely, 2^21367067 is an apocalyptic number.

21367067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21367067 is an equidigital number, since it uses as much as digits as its factorization.

21367067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 21367067 is about 4622.4524875871. The cubic root of 21367067 is about 277.4906178686.

The spelling of 21367067 in words is "twenty-one million, three hundred sixty-seven thousand, sixty-seven".