108587988 has 36 divisors (see below), whose sum is σ = 274817088. Its totient is φ = 36152400.

The previous prime is 108587971. The next prime is 108587989. The reversal of 108587988 is 889785801.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×108587988² = 23582702275776288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108587989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45013 + ... + 47363.

It is an arithmetic number, because the mean of its divisors is an integer number (7633808).

Almost surely, 2^108587988 is an apocalyptic number.

108587988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

108587988 is an abundant number, since it is smaller than the sum of its proper divisors (166229100).

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

108587988 is a wasteful number, since it uses less digits than its factorization.

108587988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644 (or 3639 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 54.

The square root of 108587988 is about 10420.5560312298. The cubic root of 108587988 is about 477.0829859704.

The spelling of 108587988 in words is "one hundred eight million, five hundred eighty-seven thousand, nine hundred eighty-eight".