228350387 has 2 divisors, whose sum is σ = 228350388. Its totient is φ = 228350386.

The previous prime is 228350359. The next prime is 228350401. The reversal of 228350387 is 783053822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228350387 - 2¹⁶ = 228284851 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228350387.

It is not a weakly prime, because it can be changed into another prime (228350587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114175193 + 114175194.

It is an arithmetic number, because the mean of its divisors is an integer number (114175194).

Almost surely, 2^228350387 is an apocalyptic number.

228350387 is a deficient number, since it is larger than the sum of its proper divisors (1).

228350387 is an equidigital number, since it uses as much as digits as its factorization.

228350387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 228350387 is about 15111.2668893114. The cubic root of 228350387 is about 611.2242608031.

The spelling of 228350387 in words is "two hundred twenty-eight million, three hundred fifty thousand, three hundred eighty-seven".