229791769 has 2 divisors, whose sum is σ = 229791770. Its totient is φ = 229791768.

The previous prime is 229791743. The next prime is 229791773. The reversal of 229791769 is 967197922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213510544 + 16281225 = 14612^2 + 4035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229791769 is a prime.

It is a super-2 number, since 2×229791769² = 105608514200298722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229791799) 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, 114895884 + 114895885.

It is an arithmetic number, because the mean of its divisors is an integer number (114895885).

Almost surely, 2^229791769 is an apocalyptic number.

It is an amenable number.

229791769 is a deficient number, since it is larger than the sum of its proper divisors (1).

229791769 is an equidigital number, since it uses as much as digits as its factorization.

229791769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 52.

The square root of 229791769 is about 15158.8841607818. The cubic root of 229791769 is about 612.5076108453.

The spelling of 229791769 in words is "two hundred twenty-nine million, seven hundred ninety-one thousand, seven hundred sixty-nine".