289132227 has 16 divisors (see below), whose sum is σ = 432506880. Its totient is φ = 190881576.

The previous prime is 289132219. The next prime is 289132231. The reversal of 289132227 is 722231982.

It is not a de Polignac number, because 289132227 - 2³ = 289132219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289132191 and 289132200.

It is not an unprimeable number, because it can be changed into a prime (289132237) 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, 49203 + ... + 54764.

It is an arithmetic number, because the mean of its divisors is an integer number (27031680).

Almost surely, 2^289132227 is an apocalyptic number.

289132227 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

289132227 is a deficient number, since it is larger than the sum of its proper divisors (143374653).

289132227 is a wasteful number, since it uses less digits than its factorization.

289132227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104079 (or 104073 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 289132227 is about 17003.8885846738. Note that the first 3 decimals coincide. The cubic root of 289132227 is about 661.2497189236.

The spelling of 289132227 in words is "two hundred eighty-nine million, one hundred thirty-two thousand, two hundred twenty-seven".