109689899 has 8 divisors (see below), whose sum is σ = 126700848. Its totient is φ = 93852160.

The previous prime is 109689893. The next prime is 109689917. The reversal of 109689899 is 998986901.

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

It is a cyclic number.

It is not a de Polignac number, because 109689899 - 2¹⁶ = 109624363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109689893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293102 + ... + 293475.

It is an arithmetic number, because the mean of its divisors is an integer number (15837606).

Almost surely, 2^109689899 is an apocalyptic number.

109689899 is a deficient number, since it is larger than the sum of its proper divisors (17010949).

109689899 is a wasteful number, since it uses less digits than its factorization.

109689899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586605.

The product of its (nonzero) digits is 2519424, while the sum is 59.

The square root of 109689899 is about 10473.2945628393. The cubic root of 109689899 is about 478.6913122188.

The spelling of 109689899 in words is "one hundred nine million, six hundred eighty-nine thousand, eight hundred ninety-nine".