228816853 has 2 divisors, whose sum is σ = 228816854. Its totient is φ = 228816852.

The previous prime is 228816823. The next prime is 228816877. The reversal of 228816853 is 358618822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144048004 + 84768849 = 12002^2 + 9207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228816853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228816823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114408426 + 114408427.

It is an arithmetic number, because the mean of its divisors is an integer number (114408427).

Almost surely, 2^228816853 is an apocalyptic number.

It is an amenable number.

228816853 is a deficient number, since it is larger than the sum of its proper divisors (1).

228816853 is an equidigital number, since it uses as much as digits as its factorization.

228816853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 43.

The square root of 228816853 is about 15126.6933928073. The cubic root of 228816853 is about 611.6401734110.

The spelling of 228816853 in words is "two hundred twenty-eight million, eight hundred sixteen thousand, eight hundred fifty-three".