171628099 has 2 divisors, whose sum is σ = 171628100. Its totient is φ = 171628098.

The previous prime is 171628069. The next prime is 171628103. The reversal of 171628099 is 990826171.

171628099 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 is a cyclic number.

It is not a de Polignac number, because 171628099 - 2¹¹ = 171626051 is a prime.

It is not a weakly prime, because it can be changed into another prime (171628019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85814049 + 85814050.

It is an arithmetic number, because the mean of its divisors is an integer number (85814050).

Almost surely, 2^171628099 is an apocalyptic number.

171628099 is a deficient number, since it is larger than the sum of its proper divisors (1).

171628099 is an equidigital number, since it uses as much as digits as its factorization.

171628099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 171628099 is about 13100.6907833137. The cubic root of 171628099 is about 555.7286633454.

The spelling of 171628099 in words is "one hundred seventy-one million, six hundred twenty-eight thousand, ninety-nine".