229493879 has 2 divisors, whose sum is σ = 229493880. Its totient is φ = 229493878.

The previous prime is 229493867. The next prime is 229493909. The reversal of 229493879 is 978394922.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229493879 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229493879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229493479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114746939 + 114746940.

It is an arithmetic number, because the mean of its divisors is an integer number (114746940).

Almost surely, 2^229493879 is an apocalyptic number.

229493879 is a deficient number, since it is larger than the sum of its proper divisors (1).

229493879 is an equidigital number, since it uses as much as digits as its factorization.

229493879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 229493879 is about 15149.0553830924. The cubic root of 229493879 is about 612.2428221432.

The spelling of 229493879 in words is "two hundred twenty-nine million, four hundred ninety-three thousand, eight hundred seventy-nine".