111872680 has 16 divisors (see below), whose sum is σ = 251713620. Its totient is φ = 44749056.

The previous prime is 111872671. The next prime is 111872687. The reversal of 111872680 is 86278111.

It can be written as a sum of positive squares in 2 ways, for example, as 111640356 + 232324 = 10566^2 + 482^2 .

It is not an unprimeable number, because it can be changed into a prime (111872687) 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, 1398369 + ... + 1398448.

Almost surely, 2^111872680 is an apocalyptic number.

111872680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111872680 is an abundant number, since it is smaller than the sum of its proper divisors (139840940).

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

111872680 is a wasteful number, since it uses less digits than its factorization.

111872680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796828 (or 2796824 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 111872680 is about 10576.9882291700. The cubic root of 111872680 is about 481.8457292253.

The spelling of 111872680 in words is "one hundred eleven million, eight hundred seventy-two thousand, six hundred eighty".