20894299 has 2 divisors, whose sum is σ = 20894300. Its totient is φ = 20894298.

The previous prime is 20894267. The next prime is 20894311. The reversal of 20894299 is 99249802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20894299 - 2⁵ = 20894267 is a prime.

It is not a weakly prime, because it can be changed into another prime (20894219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10447149 + 10447150.

It is an arithmetic number, because the mean of its divisors is an integer number (10447150).

Almost surely, 2^20894299 is an apocalyptic number.

20894299 is a deficient number, since it is larger than the sum of its proper divisors (1).

20894299 is an equidigital number, since it uses as much as digits as its factorization.

20894299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 20894299 is about 4571.0282213086. The cubic root of 20894299 is about 275.4287482776.

The spelling of 20894299 in words is "twenty million, eight hundred ninety-four thousand, two hundred ninety-nine".