109027689 has 4 divisors (see below), whose sum is σ = 145370256. Its totient is φ = 72685124.

The previous prime is 109027687. The next prime is 109027691. The reversal of 109027689 is 986720901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (109027687) and next prime (109027691).

It is a cyclic number.

It is not a de Polignac number, because 109027689 - 2¹ = 109027687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109027689.

It is not an unprimeable number, because it can be changed into a prime (109027687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18171279 + ... + 18171284.

It is an arithmetic number, because the mean of its divisors is an integer number (36342564).

Almost surely, 2^109027689 is an apocalyptic number.

It is an amenable number.

109027689 is a deficient number, since it is larger than the sum of its proper divisors (36342567).

109027689 is an equidigital number, since it uses as much as digits as its factorization.

109027689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36342566.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 109027689 is about 10441.6324873077. The cubic root of 109027689 is about 477.7260631104.

The spelling of 109027689 in words is "one hundred nine million, twenty-seven thousand, six hundred eighty-nine".