108918863 has 2 divisors, whose sum is σ = 108918864. Its totient is φ = 108918862.

The previous prime is 108918793. The next prime is 108918889. The reversal of 108918863 is 368819801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108918863 - 2¹⁸ = 108656719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108918163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54459431 + 54459432.

It is an arithmetic number, because the mean of its divisors is an integer number (54459432).

Almost surely, 2^108918863 is an apocalyptic number.

108918863 is a deficient number, since it is larger than the sum of its proper divisors (1).

108918863 is an equidigital number, since it uses as much as digits as its factorization.

108918863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 108918863 is about 10436.4200279598. The cubic root of 108918863 is about 477.5670627554.

The spelling of 108918863 in words is "one hundred eight million, nine hundred eighteen thousand, eight hundred sixty-three".