8163009 has 12 divisors (see below), whose sum is σ = 12484836. Its totient is φ = 5121792.

The previous prime is 8162983. The next prime is 8163017. The reversal of 8163009 is 9003618.

It can be written as a sum of positive squares in 2 ways, for example, as 6890625 + 1272384 = 2625^2 + 1128^2 .

It is not a de Polignac number, because 8163009 - 2¹¹ = 8160961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8163019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26524 + ... + 26829.

It is an arithmetic number, because the mean of its divisors is an integer number (1040403).

Almost surely, 2^8163009 is an apocalyptic number.

It is an amenable number.

8163009 is a deficient number, since it is larger than the sum of its proper divisors (4321827).

8163009 is a wasteful number, since it uses less digits than its factorization.

8163009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53376 (or 53373 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 8163009 is about 2857.0980032194. The cubic root of 8163009 is about 201.3492850125.

The spelling of 8163009 in words is "eight million, one hundred sixty-three thousand, nine".