108989774 has 4 divisors (see below), whose sum is σ = 163484664. Its totient is φ = 54494886.

The previous prime is 108989731. The next prime is 108989779. The reversal of 108989774 is 477989801.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108989779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27247442 + ... + 27247445.

It is an arithmetic number, because the mean of its divisors is an integer number (40871166).

Almost surely, 2^108989774 is an apocalyptic number.

108989774 is a deficient number, since it is larger than the sum of its proper divisors (54494890).

108989774 is an equidigital number, since it uses as much as digits as its factorization.

108989774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54494889.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 108989774 is about 10439.8167608440. The cubic root of 108989774 is about 477.6706793699.

The spelling of 108989774 in words is "one hundred eight million, nine hundred eighty-nine thousand, seven hundred seventy-four".