3987108 has 18 divisors (see below), whose sum is σ = 10078614. Its totient is φ = 1329024.

The previous prime is 3987107. The next prime is 3987121. The reversal of 3987108 is 8017893.

It can be written as a sum of positive squares in only one way, i.e., 3968064 + 19044 = 1992^2 + 138^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 110753 = 3987108 / (3 + 9 + 8 + 7 + 1 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (3987107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55341 + ... + 55412.

It is an arithmetic number, because the mean of its divisors is an integer number (559923).

Almost surely, 2^3987108 is an apocalyptic number.

It is an amenable number.

3987108 is an abundant number, since it is smaller than the sum of its proper divisors (6091506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3987108 is a wasteful number, since it uses less digits than its factorization.

3987108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110763 (or 110758 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 3987108 is about 1996.7743988743. The cubic root of 3987108 is about 158.5693818651.

It can be divided in two parts, 3987 and 108, that added together give a triangular number (4095 = T₉₀).

The spelling of 3987108 in words is "three million, nine hundred eighty-seven thousand, one hundred eight".