111887872 has 20 divisors (see below), whose sum is σ = 223558236. Its totient is φ = 55943680.

The previous prime is 111887861. The next prime is 111887873. The reversal of 111887872 is 278788111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111887873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108754 + ... + 109777.

Almost surely, 2^111887872 is an apocalyptic number.

It is an amenable number.

111887872 is a deficient number, since it is larger than the sum of its proper divisors (111670364).

111887872 is an frugal number, since it uses more digits than its factorization.

111887872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218549 (or 218533 counting only the distinct ones).

The product of its digits is 50176, while the sum is 43.

The square root of 111887872 is about 10577.7063676394. The cubic root of 111887872 is about 481.8675393431.

The spelling of 111887872 in words is "one hundred eleven million, eight hundred eighty-seven thousand, eight hundred seventy-two".