229047947 has 2 divisors, whose sum is σ = 229047948. Its totient is φ = 229047946.

The previous prime is 229047911. The next prime is 229047977. The reversal of 229047947 is 749740922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229047947 - 2²⁰ = 227999371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229047898 and 229047907.

It is not a weakly prime, because it can be changed into another prime (229047977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114523973 + 114523974.

It is an arithmetic number, because the mean of its divisors is an integer number (114523974).

Almost surely, 2^229047947 is an apocalyptic number.

229047947 is a deficient number, since it is larger than the sum of its proper divisors (1).

229047947 is an equidigital number, since it uses as much as digits as its factorization.

229047947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 229047947 is about 15134.3300809781. The cubic root of 229047947 is about 611.8460131685.

The spelling of 229047947 in words is "two hundred twenty-nine million, forty-seven thousand, nine hundred forty-seven".