20894383 has 2 divisors, whose sum is σ = 20894384. Its totient is φ = 20894382.

The previous prime is 20894359. The next prime is 20894389. The reversal of 20894383 is 38349802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20894383 - 2⁵ = 20894351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20894389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10447191 + 10447192.

It is an arithmetic number, because the mean of its divisors is an integer number (10447192).

Almost surely, 2^20894383 is an apocalyptic number.

20894383 is a deficient number, since it is larger than the sum of its proper divisors (1).

20894383 is an equidigital number, since it uses as much as digits as its factorization.

20894383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 20894383 is about 4571.0374096041. The cubic root of 20894383 is about 275.4291173733.

The spelling of 20894383 in words is "twenty million, eight hundred ninety-four thousand, three hundred eighty-three".