109809807 has 8 divisors (see below), whose sum is σ = 148475520. Its totient is φ = 72175320.

The previous prime is 109809793. The next prime is 109809809. The reversal of 109809807 is 708908901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109809807 - 2⁸ = 109809551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109809809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257557 + ... + 257982.

It is an arithmetic number, because the mean of its divisors is an integer number (18559440).

Almost surely, 2^109809807 is an apocalyptic number.

109809807 is a deficient number, since it is larger than the sum of its proper divisors (38665713).

109809807 is an equidigital number, since it uses as much as digits as its factorization.

109809807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515613.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 109809807 is about 10479.0174634839. The cubic root of 109809807 is about 478.8656765427.

The spelling of 109809807 in words is "one hundred nine million, eight hundred nine thousand, eight hundred seven".