229747957 has 4 divisors (see below), whose sum is σ = 231400960. Its totient is φ = 228094956.

The previous prime is 229747937. The next prime is 229747961. The reversal of 229747957 is 759747922.

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 229747957 - 2²⁷ = 95530229 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 (229747907) 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, 826293 + ... + 826570.

It is an arithmetic number, because the mean of its divisors is an integer number (57850240).

Almost surely, 2^229747957 is an apocalyptic number.

It is an amenable number.

229747957 is a deficient number, since it is larger than the sum of its proper divisors (1653003).

229747957 is a wasteful number, since it uses less digits than its factorization.

229747957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653002.

The product of its digits is 2222640, while the sum is 52.

The square root of 229747957 is about 15157.4389987227. The cubic root of 229747957 is about 612.4686815584.

The spelling of 229747957 in words is "two hundred twenty-nine million, seven hundred forty-seven thousand, nine hundred fifty-seven".