199628941 has 2 divisors, whose sum is σ = 199628942. Its totient is φ = 199628940.

The previous prime is 199628929. The next prime is 199628951. The reversal of 199628941 is 149826991.

It is a happy number.

199628941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190302025 + 9326916 = 13795^2 + 3054^2 .

It is a cyclic number.

It is not a de Polignac number, because 199628941 - 2¹¹ = 199626893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199628911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99814470 + 99814471.

It is an arithmetic number, because the mean of its divisors is an integer number (99814471).

Almost surely, 2^199628941 is an apocalyptic number.

It is an amenable number.

199628941 is a deficient number, since it is larger than the sum of its proper divisors (1).

199628941 is an equidigital number, since it uses as much as digits as its factorization.

199628941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 49.

The square root of 199628941 is about 14129.0106164586. The cubic root of 199628941 is about 584.4416627165.

The spelling of 199628941 in words is "one hundred ninety-nine million, six hundred twenty-eight thousand, nine hundred forty-one".