109449689 has 8 divisors (see below), whose sum is σ = 116000928. Its totient is φ = 102911040.

The previous prime is 109449679. The next prime is 109449701. The reversal of 109449689 is 986944901.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 109449689 - 2¹⁶ = 109384153 is a prime.

It is a super-3 number, since 3×109449689³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (109449649) 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, 19454 + ... + 24440.

It is an arithmetic number, because the mean of its divisors is an integer number (14500116).

Almost surely, 2^109449689 is an apocalyptic number.

It is an amenable number.

109449689 is a deficient number, since it is larger than the sum of its proper divisors (6551239).

109449689 is a wasteful number, since it uses less digits than its factorization.

109449689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6295.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 109449689 is about 10461.8205394664. The cubic root of 109449689 is about 478.3416280038.

The spelling of 109449689 in words is "one hundred nine million, four hundred forty-nine thousand, six hundred eighty-nine".