8634009 has 4 divisors (see below), whose sum is σ = 11512016. Its totient is φ = 5756004.

The previous prime is 8633983. The next prime is 8634049. The reversal of 8634009 is 9004368.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8634009 - 2¹⁶ = 8568473 is a prime.

It is a super-2 number, since 2×8634009² = 149092222824162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8634049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438999 + ... + 1439004.

It is an arithmetic number, because the mean of its divisors is an integer number (2878004).

Almost surely, 2^8634009 is an apocalyptic number.

It is an amenable number.

8634009 is a deficient number, since it is larger than the sum of its proper divisors (2878007).

8634009 is a wasteful number, since it uses less digits than its factorization.

8634009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878006.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 8634009 is about 2938.3684248235. The cubic root of 8634009 is about 205.1496745519.

The spelling of 8634009 in words is "eight million, six hundred thirty-four thousand, nine".