9451872 has 72 divisors (see below), whose sum is σ = 27636336. Its totient is φ = 3062016.

The previous prime is 9451867. The next prime is 9451877. The reversal of 9451872 is 2781549.

It is an interprime number because it is at equal distance from previous prime (9451867) and next prime (9451877).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9451877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10213 + ... + 11099.

It is an arithmetic number, because the mean of its divisors is an integer number (383838).

Almost surely, 2^9451872 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 9451872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13818168).

9451872 is an abundant number, since it is smaller than the sum of its proper divisors (18184464).

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

9451872 is a wasteful number, since it uses less digits than its factorization.

9451872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940 (or 929 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 9451872 is about 3074.3896955331. The cubic root of 9451872 is about 211.4329214034.

The spelling of 9451872 in words is "nine million, four hundred fifty-one thousand, eight hundred seventy-two".