20194927 has 2 divisors, whose sum is σ = 20194928. Its totient is φ = 20194926.

The previous prime is 20194921. The next prime is 20194931. The reversal of 20194927 is 72949102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20194927 - 2⁷ = 20194799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20194892 and 20194901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20194921) 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, 10097463 + 10097464.

It is an arithmetic number, because the mean of its divisors is an integer number (10097464).

Almost surely, 2^20194927 is an apocalyptic number.

20194927 is a deficient number, since it is larger than the sum of its proper divisors (1).

20194927 is an equidigital number, since it uses as much as digits as its factorization.

20194927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 20194927 is about 4493.8766115682. The cubic root of 20194927 is about 272.3207675860.

The spelling of 20194927 in words is "twenty million, one hundred ninety-four thousand, nine hundred twenty-seven".