108855839 has 2 divisors, whose sum is σ = 108855840. Its totient is φ = 108855838.

The previous prime is 108855827. The next prime is 108855847. The reversal of 108855839 is 938558801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108855839 - 2⁴ = 108855823 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 108855793 and 108855802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108855869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54427919 + 54427920.

It is an arithmetic number, because the mean of its divisors is an integer number (54427920).

Almost surely, 2^108855839 is an apocalyptic number.

108855839 is a deficient number, since it is larger than the sum of its proper divisors (1).

108855839 is an equidigital number, since it uses as much as digits as its factorization.

108855839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 47.

The square root of 108855839 is about 10433.4001648552. The cubic root of 108855839 is about 477.4749330335.

The spelling of 108855839 in words is "one hundred eight million, eight hundred fifty-five thousand, eight hundred thirty-nine".