8469009 has 16 divisors (see below), whose sum is σ = 13285440. Its totient is φ = 5313600.

The previous prime is 8469007. The next prime is 8469017. The reversal of 8469009 is 9009648.

It is not a de Polignac number, because 8469009 - 2¹ = 8469007 is a prime.

It is a super-2 number, since 2×8469009² = 143448226884162, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

8469009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8469007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8767 + ... + 9684.

It is an arithmetic number, because the mean of its divisors is an integer number (830340).

Almost surely, 2^8469009 is an apocalyptic number.

It is an amenable number.

8469009 is a deficient number, since it is larger than the sum of its proper divisors (4816431).

8469009 is a wasteful number, since it uses less digits than its factorization.

8469009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18477 (or 18471 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 8469009 is about 2910.1561813758. The cubic root of 8469009 is about 203.8344244714.

The spelling of 8469009 in words is "eight million, four hundred sixty-nine thousand, nine".