229885897 has 4 divisors (see below), whose sum is σ = 239880960. Its totient is φ = 219890836.

The previous prime is 229885867. The next prime is 229885907. The reversal of 229885897 is 798588922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798588922 = 2 ⋅399294461.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229885897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229885867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4997497 + ... + 4997542.

It is an arithmetic number, because the mean of its divisors is an integer number (59970240).

Almost surely, 2^229885897 is an apocalyptic number.

It is an amenable number.

229885897 is a deficient number, since it is larger than the sum of its proper divisors (9995063).

229885897 is an equidigital number, since it uses as much as digits as its factorization.

229885897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995062.

The product of its digits is 5806080, while the sum is 58.

The square root of 229885897 is about 15161.9885569143. The cubic root of 229885897 is about 612.5912318359.

The spelling of 229885897 in words is "two hundred twenty-nine million, eight hundred eighty-five thousand, eight hundred ninety-seven".