229783689 has 8 divisors (see below), whose sum is σ = 340420320. Its totient is φ = 153189108.

The previous prime is 229783651. The next prime is 229783693. The reversal of 229783689 is 986387922.

It is a happy number.

It is not a de Polignac number, because 229783689 - 2¹² = 229779593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229783649) 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 in 7 ways as a sum of consecutive naturals, for example, 4255227 + ... + 4255280.

It is an arithmetic number, because the mean of its divisors is an integer number (42552540).

Almost surely, 2^229783689 is an apocalyptic number.

It is an amenable number.

229783689 is a deficient number, since it is larger than the sum of its proper divisors (110636631).

229783689 is an equidigital number, since it uses as much as digits as its factorization.

229783689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8510516 (or 8510510 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 229783689 is about 15158.6176480575. The cubic root of 229783689 is about 612.5004317087.

The spelling of 229783689 in words is "two hundred twenty-nine million, seven hundred eighty-three thousand, six hundred eighty-nine".