111983790 has 32 divisors (see below), whose sum is σ = 278030880. Its totient is φ = 28832384.

The previous prime is 111983789. The next prime is 111983797. The reversal of 111983790 is 97389111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111983797) 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, 63489 + ... + 65228.

It is an arithmetic number, because the mean of its divisors is an integer number (8688465).

Almost surely, 2^111983790 is an apocalyptic number.

111983790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111983790 is an abundant number, since it is smaller than the sum of its proper divisors (166047090).

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

111983790 is a wasteful number, since it uses less digits than its factorization.

111983790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128756.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 111983790 is about 10582.2393660321. The cubic root of 111983790 is about 482.0051967094.

The spelling of 111983790 in words is "one hundred eleven million, nine hundred eighty-three thousand, seven hundred ninety".