228929839 has 2 divisors, whose sum is σ = 228929840. Its totient is φ = 228929838.

The previous prime is 228929783. The next prime is 228929849. The reversal of 228929839 is 938929822.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228929839 - 2⁷ = 228929711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228929849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114464919 + 114464920.

It is an arithmetic number, because the mean of its divisors is an integer number (114464920).

Almost surely, 2^228929839 is an apocalyptic number.

228929839 is a deficient number, since it is larger than the sum of its proper divisors (1).

228929839 is an equidigital number, since it uses as much as digits as its factorization.

228929839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 52.

The square root of 228929839 is about 15130.4275881417. The cubic root of 228929839 is about 611.7408294659.

The spelling of 228929839 in words is "two hundred twenty-eight million, nine hundred twenty-nine thousand, eight hundred thirty-nine".