20894267 has 2 divisors, whose sum is σ = 20894268. Its totient is φ = 20894266.

The previous prime is 20894261. The next prime is 20894299. The reversal of 20894267 is 76249802.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20894267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20894267.

It is not a weakly prime, because it can be changed into another prime (20894261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10447133 + 10447134.

It is an arithmetic number, because the mean of its divisors is an integer number (10447134).

Almost surely, 2^20894267 is an apocalyptic number.

20894267 is a deficient number, since it is larger than the sum of its proper divisors (1).

20894267 is an equidigital number, since it uses as much as digits as its factorization.

20894267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 20894267 is about 4571.0247210008. The cubic root of 20894267 is about 275.4286076695.

The spelling of 20894267 in words is "twenty million, eight hundred ninety-four thousand, two hundred sixty-seven".