9228641 has 4 divisors (see below), whose sum is σ = 9546900. Its totient is φ = 8910384.

The previous prime is 9228631. The next prime is 9228689. The reversal of 9228641 is 1468229.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3841600 + 5387041 = 1960^2 + 2321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9228641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9228598 and 9228607.

It is not an unprimeable number, because it can be changed into a prime (9228601) 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, 159086 + ... + 159143.

It is an arithmetic number, because the mean of its divisors is an integer number (2386725).

Almost surely, 2^9228641 is an apocalyptic number.

It is an amenable number.

9228641 is a deficient number, since it is larger than the sum of its proper divisors (318259).

9228641 is a wasteful number, since it uses less digits than its factorization.

9228641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318258.

The product of its digits is 6912, while the sum is 32.

The square root of 9228641 is about 3037.8678378099. The cubic root of 9228641 is about 209.7551265153.

The spelling of 9228641 in words is "nine million, two hundred twenty-eight thousand, six hundred forty-one".