109507986 has 48 divisors (see below), whose sum is σ = 275004288. Its totient is φ = 30844800.

The previous prime is 109507969. The next prime is 109507987. The reversal of 109507986 is 689705901.

It is not an unprimeable number, because it can be changed into a prime (109507987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2826 + ... + 15066.

It is an arithmetic number, because the mean of its divisors is an integer number (5729256).

Almost surely, 2^109507986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109507986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137502144).

109507986 is an abundant number, since it is smaller than the sum of its proper divisors (165496302).

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

109507986 is a wasteful number, since it uses less digits than its factorization.

109507986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12327 (or 12324 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 109507986 is about 10464.6063471112. The cubic root of 109507986 is about 478.4265404799.

The spelling of 109507986 in words is "one hundred nine million, five hundred seven thousand, nine hundred eighty-six".