227388947 has 2 divisors, whose sum is σ = 227388948. Its totient is φ = 227388946.

The previous prime is 227388929. The next prime is 227388949. The reversal of 227388947 is 749883722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 227388947 - 2⁸ = 227388691 is a prime.

Together with 227388949, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 227388895 and 227388904.

It is not a weakly prime, because it can be changed into another prime (227388949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113694473 + 113694474.

It is an arithmetic number, because the mean of its divisors is an integer number (113694474).

Almost surely, 2^227388947 is an apocalyptic number.

227388947 is a deficient number, since it is larger than the sum of its proper divisors (1).

227388947 is an equidigital number, since it uses as much as digits as its factorization.

227388947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The square root of 227388947 is about 15079.4213085251. The cubic root of 227388947 is about 610.3652269518.

The spelling of 227388947 in words is "two hundred twenty-seven million, three hundred eighty-eight thousand, nine hundred forty-seven".