109643589 has 12 divisors (see below), whose sum is σ = 172771872. Its totient is φ = 66450600.

The previous prime is 109643549. The next prime is 109643609. The reversal of 109643589 is 985346901.

It is a happy number.

109643589 is a `hidden beast` number, since 1 + 0 + 9 + 64 + 3 + 589 = 666.

It is not a de Polignac number, because 109643589 - 2⁸ = 109643333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109643549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 553657 + ... + 553854.

It is an arithmetic number, because the mean of its divisors is an integer number (14397656).

Almost surely, 2^109643589 is an apocalyptic number.

It is an amenable number.

109643589 is a deficient number, since it is larger than the sum of its proper divisors (63128283).

109643589 is a wasteful number, since it uses less digits than its factorization.

109643589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107528 (or 1107525 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 109643589 is about 10471.0834682950. The cubic root of 109643589 is about 478.6239364764.

The spelling of 109643589 in words is "one hundred nine million, six hundred forty-three thousand, five hundred eighty-nine".