229477889 has 2 divisors, whose sum is σ = 229477890. Its totient is φ = 229477888.

The previous prime is 229477823. The next prime is 229477901. The reversal of 229477889 is 988774922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129777664 + 99700225 = 11392^2 + 9985^2 .

It is a cyclic number.

It is not a de Polignac number, because 229477889 - 2¹² = 229473793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (229477289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114738944 + 114738945.

It is an arithmetic number, because the mean of its divisors is an integer number (114738945).

Almost surely, 2^229477889 is an apocalyptic number.

It is an amenable number.

229477889 is a deficient number, since it is larger than the sum of its proper divisors (1).

229477889 is an equidigital number, since it uses as much as digits as its factorization.

229477889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 56.

The square root of 229477889 is about 15148.5276182209. The cubic root of 229477889 is about 612.2286024609.

The spelling of 229477889 in words is "two hundred twenty-nine million, four hundred seventy-seven thousand, eight hundred eighty-nine".