228323839 has 2 divisors, whose sum is σ = 228323840. Its totient is φ = 228323838.

The previous prime is 228323819. The next prime is 228323857. The reversal of 228323839 is 938323822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228323839 - 2⁵ = 228323807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228323819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114161919 + 114161920.

It is an arithmetic number, because the mean of its divisors is an integer number (114161920).

Almost surely, 2^228323839 is an apocalyptic number.

228323839 is a deficient number, since it is larger than the sum of its proper divisors (1).

228323839 is an equidigital number, since it uses as much as digits as its factorization.

228323839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The square root of 228323839 is about 15110.3884463636. The cubic root of 228323839 is about 611.2005729218.

The spelling of 228323839 in words is "two hundred twenty-eight million, three hundred twenty-three thousand, eight hundred thirty-nine".