170477089 has 2 divisors, whose sum is σ = 170477090. Its totient is φ = 170477088.

The previous prime is 170476951. The next prime is 170477113. The reversal of 170477089 is 980774071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157753600 + 12723489 = 12560^2 + 3567^2 .

It is an emirp because it is prime and its reverse (980774071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170477089 - 2¹³ = 170468897 is a prime.

It is not a weakly prime, because it can be changed into another prime (170471089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85238544 + 85238545.

It is an arithmetic number, because the mean of its divisors is an integer number (85238545).

Almost surely, 2^170477089 is an apocalyptic number.

It is an amenable number.

170477089 is a deficient number, since it is larger than the sum of its proper divisors (1).

170477089 is an equidigital number, since it uses as much as digits as its factorization.

170477089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 170477089 is about 13056.6875201944. The cubic root of 170477089 is about 554.4835593041.

The spelling of 170477089 in words is "one hundred seventy million, four hundred seventy-seven thousand, eighty-nine".