109685616 has 40 divisors (see below), whose sum is σ = 284803200. Its totient is φ = 36374976.

The previous prime is 109685603. The next prime is 109685623. The reversal of 109685616 is 616586901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 3811 + ... + 15293.

It is an arithmetic number, because the mean of its divisors is an integer number (7120080).

Almost surely, 2^109685616 is an apocalyptic number.

109685616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

109685616 is an abundant number, since it is smaller than the sum of its proper divisors (175117584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109685616 is a wasteful number, since it uses less digits than its factorization.

109685616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11693 (or 11687 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 109685616 is about 10473.0900884123. The cubic root of 109685616 is about 478.6850817405.

The spelling of 109685616 in words is "one hundred nine million, six hundred eighty-five thousand, six hundred sixteen".