111806898 has 16 divisors (see below), whose sum is σ = 255558720. Its totient is φ = 31944816.

The previous prime is 111806879. The next prime is 111806911. The reversal of 111806898 is 898608111.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2662069 = 111806898 / (1 + 1 + 1 + 8 + 0 + 6 + 8 + 9 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330993 + ... + 1331076.

It is an arithmetic number, because the mean of its divisors is an integer number (15972420).

Almost surely, 2^111806898 is an apocalyptic number.

111806898 is an abundant number, since it is smaller than the sum of its proper divisors (143751822).

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

111806898 is a wasteful number, since it uses less digits than its factorization.

111806898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662081.

The product of its (nonzero) digits is 27648, while the sum is 42.

The square root of 111806898 is about 10573.8780965169. The cubic root of 111806898 is about 481.7512677046.

The spelling of 111806898 in words is "one hundred eleven million, eight hundred six thousand, eight hundred ninety-eight".