108012987 has 24 divisors (see below), whose sum is σ = 162323280. Its totient is φ = 70986240.

The previous prime is 108012973. The next prime is 108012997. The reversal of 108012987 is 789210801.

It is not a de Polignac number, because 108012987 - 2⁷ = 108012859 is a prime.

108012987 is a modest number, since divided by 12987 gives 108 as remainder.

It is not an unprimeable number, because it can be changed into a prime (108012937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168187 + ... + 168827.

It is an arithmetic number, because the mean of its divisors is an integer number (6763470).

Almost surely, 2^108012987 is an apocalyptic number.

108012987 is a deficient number, since it is larger than the sum of its proper divisors (54310293).

108012987 is an frugal number, since it uses more digits than its factorization.

108012987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 108012987 is about 10392.9296639591. The cubic root of 108012987 is about 476.2394033230.

The spelling of 108012987 in words is "one hundred eight million, twelve thousand, nine hundred eighty-seven".