9272239 has 2 divisors, whose sum is σ = 9272240. Its totient is φ = 9272238.

The previous prime is 9272231. The next prime is 9272279. The reversal of 9272239 is 9322729.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9272239 - 2³ = 9272231 is a prime.

It is an Ulam number.

9272239 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9272231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4636119 + 4636120.

It is an arithmetic number, because the mean of its divisors is an integer number (4636120).

Almost surely, 2^9272239 is an apocalyptic number.

9272239 is a deficient number, since it is larger than the sum of its proper divisors (1).

9272239 is an equidigital number, since it uses as much as digits as its factorization.

9272239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 9272239 is about 3045.0351393703. The cubic root of 9272239 is about 210.0849165274.

The spelling of 9272239 in words is "nine million, two hundred seventy-two thousand, two hundred thirty-nine".