108778823 has 2 divisors, whose sum is σ = 108778824. Its totient is φ = 108778822.

The previous prime is 108778751. The next prime is 108778841. The reversal of 108778823 is 328877801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108778823 - 2⁸ = 108778567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108778883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54389411 + 54389412.

It is an arithmetic number, because the mean of its divisors is an integer number (54389412).

Almost surely, 2^108778823 is an apocalyptic number.

108778823 is a deficient number, since it is larger than the sum of its proper divisors (1).

108778823 is an equidigital number, since it uses as much as digits as its factorization.

108778823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 108778823 is about 10429.7086728250. The cubic root of 108778823 is about 477.3623012396.

The spelling of 108778823 in words is "one hundred eight million, seven hundred seventy-eight thousand, eight hundred twenty-three".