9447672 has 64 divisors (see below), whose sum is σ = 25764480. Its totient is φ = 2869632.

The previous prime is 9447667. The next prime is 9447679. The reversal of 9447672 is 2767449.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 9447672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9447679) 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, 33243 + ... + 33525.

It is an arithmetic number, because the mean of its divisors is an integer number (402570).

Almost surely, 2^9447672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9447672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12882240).

9447672 is an abundant number, since it is smaller than the sum of its proper divisors (16316808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9447672 is a wasteful number, since it uses less digits than its factorization.

9447672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 408 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 9447672 is about 3073.7065572367. The cubic root of 9447672 is about 211.4015995716.

The spelling of 9447672 in words is "nine million, four hundred forty-seven thousand, six hundred seventy-two".