9472809 has 4 divisors (see below), whose sum is σ = 12630416. Its totient is φ = 6315204.

The previous prime is 9472759. The next prime is 9472829. The reversal of 9472809 is 9082749.

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 9472809 - 2¹² = 9468713 is a prime.

It is a super-2 number, since 2×9472809² = 179468220700962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9472829) 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, 1578799 + ... + 1578804.

It is an arithmetic number, because the mean of its divisors is an integer number (3157604).

Almost surely, 2^9472809 is an apocalyptic number.

It is an amenable number.

9472809 is a deficient number, since it is larger than the sum of its proper divisors (3157607).

9472809 is a wasteful number, since it uses less digits than its factorization.

9472809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157606.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 9472809 is about 3077.7928780215. The cubic root of 9472809 is about 211.5889224752.

The spelling of 9472809 in words is "nine million, four hundred seventy-two thousand, eight hundred nine".