194432863 has 2 divisors, whose sum is σ = 194432864. Its totient is φ = 194432862.

The previous prime is 194432857. The next prime is 194432867. The reversal of 194432863 is 368234491.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194432863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194432867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97216431 + 97216432.

It is an arithmetic number, because the mean of its divisors is an integer number (97216432).

Almost surely, 2^194432863 is an apocalyptic number.

194432863 is a deficient number, since it is larger than the sum of its proper divisors (1).

194432863 is an equidigital number, since it uses as much as digits as its factorization.

194432863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The square root of 194432863 is about 13943.9184951720. The cubic root of 194432863 is about 579.3262718024.

The spelling of 194432863 in words is "one hundred ninety-four million, four hundred thirty-two thousand, eight hundred sixty-three".