9071272 has 48 divisors (see below), whose sum is σ = 20119860. Its totient is φ = 3822336.

The previous prime is 9071267. The next prime is 9071347. The reversal of 9071272 is 2721709.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8561476 + 509796 = 2926^2 + 714^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 9071272.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28458 + ... + 28774.

Almost surely, 2^9071272 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 9071272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10059930).

9071272 is an abundant number, since it is smaller than the sum of its proper divisors (11048588).

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

9071272 is a wasteful number, since it uses less digits than its factorization.

9071272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 9071272 is about 3011.8552422054. The cubic root of 9071272 is about 208.5560197358.

The spelling of 9071272 in words is "nine million, seventy-one thousand, two hundred seventy-two".