108987715 has 8 divisors (see below), whose sum is σ = 132361488. Its totient is φ = 86139360.

The previous prime is 108987701. The next prime is 108987719. The reversal of 108987715 is 517789801.

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

It is not a de Polignac number, because 108987715 - 2⁷ = 108987587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108987719) 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, 130896 + ... + 131725.

It is an arithmetic number, because the mean of its divisors is an integer number (16545186).

Almost surely, 2^108987715 is an apocalyptic number.

108987715 is a deficient number, since it is larger than the sum of its proper divisors (23373773).

108987715 is an equidigital number, since it uses as much as digits as its factorization.

108987715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262709.

The product of its (nonzero) digits is 141120, while the sum is 46.

The square root of 108987715 is about 10439.7181475364. The cubic root of 108987715 is about 477.6676713503.

It can be divided in two parts, 1089 and 87715, that added together give a square (88804 = 298²).

The spelling of 108987715 in words is "one hundred eight million, nine hundred eighty-seven thousand, seven hundred fifteen".