8489161 has 2 divisors, whose sum is σ = 8489162. Its totient is φ = 8489160.

The previous prime is 8489123. The next prime is 8489167. The reversal of 8489161 is 1619848.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5405625 + 3083536 = 2325^2 + 1756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8489161 is a prime.

8489161 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8489161.

It is not a weakly prime, because it can be changed into another prime (8489167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244580 + 4244581.

It is an arithmetic number, because the mean of its divisors is an integer number (4244581).

Almost surely, 2^8489161 is an apocalyptic number.

It is an amenable number.

8489161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8489161 is an equidigital number, since it uses as much as digits as its factorization.

8489161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 37.

The square root of 8489161 is about 2913.6164812823. The cubic root of 8489161 is about 203.9959710213.

The spelling of 8489161 in words is "eight million, four hundred eighty-nine thousand, one hundred sixty-one".