229966777 has 2 divisors, whose sum is σ = 229966778. Its totient is φ = 229966776.

The previous prime is 229966771. The next prime is 229966801. The reversal of 229966777 is 777669922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229946896 + 19881 = 15164^2 + 141^2 .

It is a cyclic number.

It is not a de Polignac number, because 229966777 - 2¹⁵ = 229934009 is a prime.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (229966771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114983388 + 114983389.

It is an arithmetic number, because the mean of its divisors is an integer number (114983389).

Almost surely, 2^229966777 is an apocalyptic number.

It is an amenable number.

229966777 is a deficient number, since it is larger than the sum of its proper divisors (1).

229966777 is an equidigital number, since it uses as much as digits as its factorization.

229966777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000752, while the sum is 55.

The square root of 229966777 is about 15164.6555186724. The cubic root of 229966777 is about 612.6630653991.

The spelling of 229966777 in words is "two hundred twenty-nine million, nine hundred sixty-six thousand, seven hundred seventy-seven".