9272281 has 4 divisors (see below), whose sum is σ = 9326052. Its totient is φ = 9218512.

The previous prime is 9272279. The next prime is 9272339. The reversal of 9272281 is 1822729.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1822729 = 509 ⋅3581.

It can be written as a sum of positive squares in 2 ways, for example, as 8462281 + 810000 = 2909^2 + 900^2 .

It is a cyclic number.

It is not a de Polignac number, because 9272281 - 2¹ = 9272279 is a prime.

It is a super-2 number, since 2×9272281² = 171950389885922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9272201) 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, 26626 + ... + 26971.

It is an arithmetic number, because the mean of its divisors is an integer number (2331513).

Almost surely, 2^9272281 is an apocalyptic number.

It is an amenable number.

9272281 is a deficient number, since it is larger than the sum of its proper divisors (53771).

9272281 is a wasteful number, since it uses less digits than its factorization.

9272281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53770.

The product of its digits is 4032, while the sum is 31.

The square root of 9272281 is about 3045.0420358346. The cubic root of 9272281 is about 210.0852337306.

The spelling of 9272281 in words is "nine million, two hundred seventy-two thousand, two hundred eighty-one".