227249947 has 2 divisors, whose sum is σ = 227249948. Its totient is φ = 227249946.

The previous prime is 227249929. The next prime is 227249989. The reversal of 227249947 is 749942722.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227249947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 227249897 and 227249906.

It is not a weakly prime, because it can be changed into another prime (227249447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113624973 + 113624974.

It is an arithmetic number, because the mean of its divisors is an integer number (113624974).

Almost surely, 2^227249947 is an apocalyptic number.

227249947 is a deficient number, since it is larger than the sum of its proper divisors (1).

227249947 is an equidigital number, since it uses as much as digits as its factorization.

227249947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 227249947 is about 15074.8116737822. The cubic root of 227249947 is about 610.2408320755.

The spelling of 227249947 in words is "two hundred twenty-seven million, two hundred forty-nine thousand, nine hundred forty-seven".