111587680 has 24 divisors (see below), whose sum is σ = 263626272. Its totient is φ = 44635008.

The previous prime is 111587669. The next prime is 111587683. The reversal of 111587680 is 86785111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111587683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348552 + ... + 348871.

It is an arithmetic number, because the mean of its divisors is an integer number (10984428).

Almost surely, 2^111587680 is an apocalyptic number.

111587680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111587680 is an abundant number, since it is smaller than the sum of its proper divisors (152038592).

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

111587680 is an equidigital number, since it uses as much as digits as its factorization.

111587680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697438 (or 697430 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 37.

The square root of 111587680 is about 10563.5069934184. The cubic root of 111587680 is about 481.4362076972.

The spelling of 111587680 in words is "one hundred eleven million, five hundred eighty-seven thousand, six hundred eighty".