170016849 has 6 divisors (see below), whose sum is σ = 245579906. Its totient is φ = 113344560.

The previous prime is 170016839. The next prime is 170016853. The reversal of 170016849 is 948610071.

170016849 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in only one way, i.e., 124211025 + 45805824 = 11145^2 + 6768^2 .

It is not a de Polignac number, because 170016849 - 2⁵ = 170016817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170016809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9445372 + ... + 9445389.

Almost surely, 2^170016849 is an apocalyptic number.

It is an amenable number.

170016849 is a deficient number, since it is larger than the sum of its proper divisors (75563057).

170016849 is a wasteful number, since it uses less digits than its factorization.

170016849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18890767 (or 18890764 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 170016849 is about 13039.0509240512. The cubic root of 170016849 is about 553.9841265810.

The spelling of 170016849 in words is "one hundred seventy million, sixteen thousand, eight hundred forty-nine".