227491089 has 16 divisors (see below), whose sum is σ = 348042240. Its totient is φ = 129474000.

The previous prime is 227491081. The next prime is 227491151. The reversal of 227491089 is 980194722.

It is not a de Polignac number, because 227491089 - 2³ = 227491081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227491089.

It is not an unprimeable number, because it can be changed into a prime (227491081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16309 + ... + 26850.

It is an arithmetic number, because the mean of its divisors is an integer number (21752640).

Almost surely, 2^227491089 is an apocalyptic number.

It is an amenable number.

227491089 is a deficient number, since it is larger than the sum of its proper divisors (120551151).

227491089 is a wasteful number, since it uses less digits than its factorization.

227491089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43420.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 227491089 is about 15082.8077293321. The cubic root of 227491089 is about 610.4566042934.

The spelling of 227491089 in words is "two hundred twenty-seven million, four hundred ninety-one thousand, eighty-nine".