228753047 has 2 divisors, whose sum is σ = 228753048. Its totient is φ = 228753046.

The previous prime is 228753043. The next prime is 228753079. The reversal of 228753047 is 740357822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228753047 - 2² = 228753043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228753047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228753043) 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, 114376523 + 114376524.

It is an arithmetic number, because the mean of its divisors is an integer number (114376524).

Almost surely, 2^228753047 is an apocalyptic number.

228753047 is a deficient number, since it is larger than the sum of its proper divisors (1).

228753047 is an equidigital number, since it uses as much as digits as its factorization.

228753047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 228753047 is about 15124.5841926315. The cubic root of 228753047 is about 611.5833157969.

The spelling of 228753047 in words is "two hundred twenty-eight million, seven hundred fifty-three thousand, forty-seven".