9997009 has 4 divisors (see below), whose sum is σ = 10905840. Its totient is φ = 9088180.

The previous prime is 9997007. The next prime is 9997033. The reversal of 9997009 is 9007999.

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 a cyclic number.

It is not a de Polignac number, because 9997009 - 2¹ = 9997007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9997007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454399 + ... + 454420.

It is an arithmetic number, because the mean of its divisors is an integer number (2726460).

Almost surely, 2^9997009 is an apocalyptic number.

It is an amenable number.

9997009 is a deficient number, since it is larger than the sum of its proper divisors (908831).

9997009 is a wasteful number, since it uses less digits than its factorization.

9997009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908830.

The product of its (nonzero) digits is 45927, while the sum is 43.

The square root of 9997009 is about 3161.8047061765. The cubic root of 9997009 is about 215.4219871474.

It can be divided in two parts, 999 and 7009, that added together give a palindrome (8008).

The spelling of 9997009 in words is "nine million, nine hundred ninety-seven thousand, nine".