194628871 has 2 divisors, whose sum is σ = 194628872. Its totient is φ = 194628870.

The previous prime is 194628839. The next prime is 194628887. The reversal of 194628871 is 178826491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194628871 - 2⁵ = 194628839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (174628871) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97314435 + 97314436.

It is an arithmetic number, because the mean of its divisors is an integer number (97314436).

Almost surely, 2^194628871 is an apocalyptic number.

194628871 is a deficient number, since it is larger than the sum of its proper divisors (1).

194628871 is an equidigital number, since it uses as much as digits as its factorization.

194628871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 46.

The square root of 194628871 is about 13950.9451651134. The cubic root of 194628871 is about 579.5208795897.

The spelling of 194628871 in words is "one hundred ninety-four million, six hundred twenty-eight thousand, eight hundred seventy-one".