109988487 has 54 divisors (see below), whose sum is σ = 196548768. Its totient is φ = 59084928.

The previous prime is 109988381. The next prime is 109988491. The reversal of 109988487 is 784889901.

It is not a de Polignac number, because 109988487 - 2¹⁵ = 109955719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109988497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 127018 + ... + 127880.

It is an arithmetic number, because the mean of its divisors is an integer number (3639792).

Almost surely, 2^109988487 is an apocalyptic number.

109988487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

109988487 is a deficient number, since it is larger than the sum of its proper divisors (86560281).

109988487 is a wasteful number, since it uses less digits than its factorization.

109988487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 109988487 is about 10487.5396065998. The cubic root of 109988487 is about 479.1252688755.

The spelling of 109988487 in words is "one hundred nine million, nine hundred eighty-eight thousand, four hundred eighty-seven".