229599997 has 4 divisors (see below), whose sum is σ = 250472736. Its totient is φ = 208727260.

The previous prime is 229599973. The next prime is 229600001. The reversal of 229599997 is 799995922.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 229599997 - 2¹⁵ = 229567229 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 (229599197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10436353 + ... + 10436374.

It is an arithmetic number, because the mean of its divisors is an integer number (62618184).

Almost surely, 2^229599997 is an apocalyptic number.

It is an amenable number.

229599997 is a deficient number, since it is larger than the sum of its proper divisors (20872739).

229599997 is a wasteful number, since it uses less digits than its factorization.

229599997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20872738.

The product of its digits is 8266860, while the sum is 61.

The square root of 229599997 is about 15152.5574409075. The cubic root of 229599997 is about 612.3371746558.

The spelling of 229599997 in words is "two hundred twenty-nine million, five hundred ninety-nine thousand, nine hundred ninety-seven".