109871709 has 8 divisors (see below), whose sum is σ = 147190752. Its totient is φ = 72900240.

The previous prime is 109871693. The next prime is 109871711. The reversal of 109871709 is 907178901.

It is a happy number.

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

It is not a de Polignac number, because 109871709 - 2⁴ = 109871693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109871779) 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, 86154 + ... + 87419.

It is an arithmetic number, because the mean of its divisors is an integer number (18398844).

Almost surely, 2^109871709 is an apocalyptic number.

It is an amenable number.

109871709 is a deficient number, since it is larger than the sum of its proper divisors (37319043).

109871709 is a wasteful number, since it uses less digits than its factorization.

109871709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173787.

The product of its (nonzero) digits is 31752, while the sum is 42.

The square root of 109871709 is about 10481.9706639544. The cubic root of 109871709 is about 478.9556417155.

The spelling of 109871709 in words is "one hundred nine million, eight hundred seventy-one thousand, seven hundred nine".