229397917 has 8 divisors (see below), whose sum is σ = 271209600. Its totient is φ = 189846384.

The previous prime is 229397897. The next prime is 229397933. The reversal of 229397917 is 719793922.

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

It is not a de Polignac number, because 229397917 - 2¹¹ = 229395869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229397017) 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, 564817 + ... + 565222.

It is an arithmetic number, because the mean of its divisors is an integer number (33901200).

Almost surely, 2^229397917 is an apocalyptic number.

It is an amenable number.

229397917 is a deficient number, since it is larger than the sum of its proper divisors (41811683).

229397917 is a wasteful number, since it uses less digits than its factorization.

229397917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130075.

The product of its digits is 428652, while the sum is 49.

The square root of 229397917 is about 15145.8877917407. The cubic root of 229397917 is about 612.1574745704.

It can be divided in two parts, 22 and 9397917, that added together give a palindrome (9397939).

The spelling of 229397917 in words is "two hundred twenty-nine million, three hundred ninety-seven thousand, nine hundred seventeen".