21796067 has 2 divisors, whose sum is σ = 21796068. Its totient is φ = 21796066.

The previous prime is 21796031. The next prime is 21796129. The reversal of 21796067 is 76069712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21796067 - 2¹⁰ = 21795043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21796067.

It is not a weakly prime, because it can be changed into another prime (21796867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10898033 + 10898034.

It is an arithmetic number, because the mean of its divisors is an integer number (10898034).

Almost surely, 2^21796067 is an apocalyptic number.

21796067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21796067 is an equidigital number, since it uses as much as digits as its factorization.

21796067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 21796067 is about 4668.6258149481. The cubic root of 21796067 is about 279.3354435368.

The spelling of 21796067 in words is "twenty-one million, seven hundred ninety-six thousand, sixty-seven".