228761447 has 2 divisors, whose sum is σ = 228761448. Its totient is φ = 228761446.

The previous prime is 228761441. The next prime is 228761453. The reversal of 228761447 is 744167822.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (228761441) and next prime (228761453).

It is a cyclic number.

It is not a de Polignac number, because 228761447 - 2⁸ = 228761191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228761441) 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 as a sum of consecutive naturals, namely, 114380723 + 114380724.

It is an arithmetic number, because the mean of its divisors is an integer number (114380724).

Almost surely, 2^228761447 is an apocalyptic number.

228761447 is a deficient number, since it is larger than the sum of its proper divisors (1).

228761447 is an equidigital number, since it uses as much as digits as its factorization.

228761447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 41.

The square root of 228761447 is about 15124.8618836669. The cubic root of 228761447 is about 611.5908016527.

The spelling of 228761447 in words is "two hundred twenty-eight million, seven hundred sixty-one thousand, four hundred forty-seven".