111983728 has 10 divisors (see below), whose sum is σ = 216968504. Its totient is φ = 55991856.

The previous prime is 111983723. The next prime is 111983731. The reversal of 111983728 is 827389111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111983723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3499476 + ... + 3499507.

Almost surely, 2^111983728 is an apocalyptic number.

It is an amenable number.

111983728 is a deficient number, since it is larger than the sum of its proper divisors (104984776).

111983728 is an equidigital number, since it uses as much as digits as its factorization.

111983728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998991 (or 6998985 counting only the distinct ones).

The product of its digits is 24192, while the sum is 40.

The square root of 111983728 is about 10582.2364365951. The cubic root of 111983728 is about 482.0051077551.

The spelling of 111983728 in words is "one hundred eleven million, nine hundred eighty-three thousand, seven hundred twenty-eight".