108807990 has 32 divisors (see below), whose sum is σ = 276501600. Its totient is φ = 27308544.

The previous prime is 108807989. The next prime is 108807991. The reversal of 108807990 is 99708801.

It is an interprime number because it is at equal distance from previous prime (108807989) and next prime (108807991).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108807991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106165 + ... + 107184.

It is an arithmetic number, because the mean of its divisors is an integer number (8640675).

Almost surely, 2^108807990 is an apocalyptic number.

108807990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108807990 is an abundant number, since it is smaller than the sum of its proper divisors (167693610).

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

108807990 is a wasteful number, since it uses less digits than its factorization.

108807990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213376.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 108807990 is about 10431.1068444341. The cubic root of 108807990 is about 477.4049626745.

The spelling of 108807990 in words is "one hundred eight million, eight hundred seven thousand, nine hundred ninety".