229657 has 4 divisors (see below), whose sum is σ = 231120. Its totient is φ = 228196.

The previous prime is 229639. The next prime is 229681. The reversal of 229657 is 756922.

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 229657 - 2⁷ = 229529 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

229657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (229627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463 + ... + 820.

It is an arithmetic number, because the mean of its divisors is an integer number (57780).

2²²⁹⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

229657 is a deficient number, since it is larger than the sum of its proper divisors (1463).

229657 is a wasteful number, since it uses less digits than its factorization.

229657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462.

The product of its digits is 7560, while the sum is 31.

The square root of 229657 is about 479.2254166882. The cubic root of 229657 is about 61.2387845632.

The spelling of 229657 in words is "two hundred twenty-nine thousand, six hundred fifty-seven".