112891998 has 8 divisors (see below), whose sum is σ = 225784008. Its totient is φ = 37630664.

The previous prime is 112891997. The next prime is 112892051. The reversal of 112891998 is 899198211.

It is a sphenic number, since it is the product of 3 distinct primes.

112891998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112891997) 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, 9407661 + ... + 9407672.

It is an arithmetic number, because the mean of its divisors is an integer number (28223001).

Almost surely, 2^112891998 is an apocalyptic number.

112891998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

112891998 is a wasteful number, since it uses less digits than its factorization.

112891998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18815338.

The product of its digits is 93312, while the sum is 48.

The square root of 112891998 is about 10625.0646115683. The cubic root of 112891998 is about 483.3047384853.

The spelling of 112891998 in words is "one hundred twelve million, eight hundred ninety-one thousand, nine hundred ninety-eight".