228857093 has 2 divisors, whose sum is σ = 228857094. Its totient is φ = 228857092.

The previous prime is 228857081. The next prime is 228857113. The reversal of 228857093 is 390758822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222815329 + 6041764 = 14927^2 + 2458^2 .

It is a cyclic number.

It is not a de Polignac number, because 228857093 - 2¹⁴ = 228840709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228857063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114428546 + 114428547.

It is an arithmetic number, because the mean of its divisors is an integer number (114428547).

Almost surely, 2^228857093 is an apocalyptic number.

It is an amenable number.

228857093 is a deficient number, since it is larger than the sum of its proper divisors (1).

228857093 is an equidigital number, since it uses as much as digits as its factorization.

228857093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 228857093 is about 15128.0234333504. The cubic root of 228857093 is about 611.6760258954.

The spelling of 228857093 in words is "two hundred twenty-eight million, eight hundred fifty-seven thousand, ninety-three".