109690866 has 24 divisors (see below), whose sum is σ = 244088364. Its totient is φ = 35575200.

The previous prime is 109690843. The next prime is 109690883. The reversal of 109690866 is 668096901.

It can be written as a sum of positive squares in 2 ways, for example, as 79121025 + 30569841 = 8895^2 + 5529^2 .

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 81685 + ... + 83016.

Almost surely, 2^109690866 is an apocalyptic number.

109690866 is an abundant number, since it is smaller than the sum of its proper divisors (134397498).

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

109690866 is a wasteful number, since it uses less digits than its factorization.

109690866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164746 (or 164743 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 109690866 is about 10473.3407277716. The cubic root of 109690866 is about 478.6927188908.

The spelling of 109690866 in words is "one hundred nine million, six hundred ninety thousand, eight hundred sixty-six".