108478805 has 4 divisors (see below), whose sum is σ = 130174572. Its totient is φ = 86783040.

The previous prime is 108478789. The next prime is 108478813. The reversal of 108478805 is 508874801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19704721 + 88774084 = 4439^2 + 9422^2 .

It is not a de Polignac number, because 108478805 - 2⁴ = 108478789 is a prime.

It is a super-2 number, since 2×108478805² = 23535302268456050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10847876 + ... + 10847885.

It is an arithmetic number, because the mean of its divisors is an integer number (32543643).

Almost surely, 2^108478805 is an apocalyptic number.

It is an amenable number.

108478805 is a deficient number, since it is larger than the sum of its proper divisors (21695767).

108478805 is an equidigital number, since it uses as much as digits as its factorization.

108478805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21695766.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 108478805 is about 10415.3158857521. The cubic root of 108478805 is about 476.9230332886.

The spelling of 108478805 in words is "one hundred eight million, four hundred seventy-eight thousand, eight hundred five".