170162989 has 2 divisors, whose sum is σ = 170162990. Its totient is φ = 170162988.

The previous prime is 170162969. The next prime is 170163001. The reversal of 170162989 is 989261071.

170162989 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., 160909225 + 9253764 = 12685^2 + 3042^2 .

It is an emirp because it is prime and its reverse (989261071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170162989 - 2¹⁵ = 170130221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170162939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85081494 + 85081495.

It is an arithmetic number, because the mean of its divisors is an integer number (85081495).

Almost surely, 2^170162989 is an apocalyptic number.

It is an amenable number.

170162989 is a deficient number, since it is larger than the sum of its proper divisors (1).

170162989 is an equidigital number, since it uses as much as digits as its factorization.

170162989 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 170162989 is about 13044.6536558086. The cubic root of 170162989 is about 554.1428090005.

The spelling of 170162989 in words is "one hundred seventy million, one hundred sixty-two thousand, nine hundred eighty-nine".