20094817 has 2 divisors, whose sum is σ = 20094818. Its totient is φ = 20094816.

The previous prime is 20094793. The next prime is 20094827. The reversal of 20094817 is 71849002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19989841 + 104976 = 4471^2 + 324^2 .

It is a cyclic number.

It is not a de Polignac number, because 20094817 - 2⁷ = 20094689 is a prime.

It is not a weakly prime, because it can be changed into another prime (20094827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10047408 + 10047409.

It is an arithmetic number, because the mean of its divisors is an integer number (10047409).

Almost surely, 2^20094817 is an apocalyptic number.

It is an amenable number.

20094817 is a deficient number, since it is larger than the sum of its proper divisors (1).

20094817 is an equidigital number, since it uses as much as digits as its factorization.

20094817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 20094817 is about 4482.7242832902. The cubic root of 20094817 is about 271.8700404609.

The spelling of 20094817 in words is "twenty million, ninety-four thousand, eight hundred seventeen".