109908489 has 8 divisors (see below), whose sum is σ = 147102912. Its totient is φ = 72993200.

The previous prime is 109908443. The next prime is 109908499. The reversal of 109908489 is 984809901.

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 109908489 - 2⁸ = 109908233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109908499) 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, 68862 + ... + 70439.

It is an arithmetic number, because the mean of its divisors is an integer number (18387864).

Almost surely, 2^109908489 is an apocalyptic number.

It is an amenable number.

109908489 is a deficient number, since it is larger than the sum of its proper divisors (37194423).

109908489 is a wasteful number, since it uses less digits than its factorization.

109908489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139567.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 109908489 is about 10483.7249582388. The cubic root of 109908489 is about 479.0090798673.

The spelling of 109908489 in words is "one hundred nine million, nine hundred eight thousand, four hundred eighty-nine".