109478805 has 16 divisors (see below), whose sum is σ = 177634944. Its totient is φ = 57565760.

The previous prime is 109478791. The next prime is 109478813. The reversal of 109478805 is 508874901.

It is not a de Polignac number, because 109478805 - 2⁵ = 109478773 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50334 + ... + 52463.

It is an arithmetic number, because the mean of its divisors is an integer number (11102184).

Almost surely, 2^109478805 is an apocalyptic number.

109478805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109478805 is a deficient number, since it is larger than the sum of its proper divisors (68156139).

109478805 is a wasteful number, since it uses less digits than its factorization.

109478805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102876.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 109478805 is about 10463.2119829429. The cubic root of 109478805 is about 478.3840406719.

The spelling of 109478805 in words is "one hundred nine million, four hundred seventy-eight thousand, eight hundred five".