109899917 has 8 divisors (see below), whose sum is σ = 116494272. Its totient is φ = 103320000.

The previous prime is 109899887. The next prime is 109899931. The reversal of 109899917 is 719998901.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109899917 is a prime.

It is a super-3 number, since 3×109899917³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109899947) 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, 14792 + ... + 20942.

It is an arithmetic number, because the mean of its divisors is an integer number (14561784).

Almost surely, 2^109899917 is an apocalyptic number.

109899917 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

109899917 is a deficient number, since it is larger than the sum of its proper divisors (6594355).

109899917 is a wasteful number, since it uses less digits than its factorization.

109899917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219.

The product of its (nonzero) digits is 367416, while the sum is 53.

The square root of 109899917 is about 10483.3161261120. The cubic root of 109899917 is about 478.9966265600.

The spelling of 109899917 in words is "one hundred nine million, eight hundred ninety-nine thousand, nine hundred seventeen".