229688447 has 8 divisors (see below), whose sum is σ = 232218576. Its totient is φ = 227165632.

The previous prime is 229688429. The next prime is 229688453. The reversal of 229688447 is 744886922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 229688447 - 2⁶ = 229688383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 229688395 and 229688404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229688047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81323 + ... + 84099.

It is an arithmetic number, because the mean of its divisors is an integer number (29027322).

Almost surely, 2^229688447 is an apocalyptic number.

229688447 is a deficient number, since it is larger than the sum of its proper divisors (2530129).

229688447 is a wasteful number, since it uses less digits than its factorization.

229688447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657.

The product of its digits is 1548288, while the sum is 50.

The square root of 229688447 is about 15155.4758090929. The cubic root of 229688447 is about 612.4157958380.

The spelling of 229688447 in words is "two hundred twenty-nine million, six hundred eighty-eight thousand, four hundred forty-seven".