8998169 has 2 divisors, whose sum is σ = 8998170. Its totient is φ = 8998168.

The previous prime is 8998159. The next prime is 8998177. The reversal of 8998169 is 9618998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6822544 + 2175625 = 2612^2 + 1475^2 .

It is a cyclic number.

It is not a de Polignac number, because 8998169 - 2²⁰ = 7949593 is a prime.

It is a super-2 number, since 2×8998169² = 161934090705122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8998109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4499084 + 4499085.

It is an arithmetic number, because the mean of its divisors is an integer number (4499085).

Almost surely, 2^8998169 is an apocalyptic number.

It is an amenable number.

8998169 is a deficient number, since it is larger than the sum of its proper divisors (1).

8998169 is an equidigital number, since it uses as much as digits as its factorization.

8998169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 50.

The square root of 8998169 is about 2999.6948178106. The cubic root of 8998169 is about 207.9942752986.

The spelling of 8998169 in words is "eight million, nine hundred ninety-eight thousand, one hundred sixty-nine".