228024857 has 2 divisors, whose sum is σ = 228024858. Its totient is φ = 228024856.

The previous prime is 228024851. The next prime is 228024887. The reversal of 228024857 is 758420822.

It is a happy number.

228024857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115261696 + 112763161 = 10736^2 + 10619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228024857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228024857.

It is not a weakly prime, because it can be changed into another prime (228024851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114012428 + 114012429.

It is an arithmetic number, because the mean of its divisors is an integer number (114012429).

Almost surely, 2^228024857 is an apocalyptic number.

It is an amenable number.

228024857 is a deficient number, since it is larger than the sum of its proper divisors (1).

228024857 is an equidigital number, since it uses as much as digits as its factorization.

228024857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 228024857 is about 15100.4919456288. The cubic root of 228024857 is about 610.9336745382.

The spelling of 228024857 in words is "two hundred twenty-eight million, twenty-four thousand, eight hundred fifty-seven".