112447889 has 4 divisors (see below), whose sum is σ = 113871360. Its totient is φ = 111024420.

The previous prime is 112447861. The next prime is 112447891. The reversal of 112447889 is 988744211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112447889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (112447859) 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, 711617 + ... + 711774.

It is an arithmetic number, because the mean of its divisors is an integer number (28467840).

Almost surely, 2^112447889 is an apocalyptic number.

It is an amenable number.

112447889 is a deficient number, since it is larger than the sum of its proper divisors (1423471).

112447889 is an equidigital number, since it uses as much as digits as its factorization.

112447889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423470.

The product of its digits is 129024, while the sum is 44.

The square root of 112447889 is about 10604.1448971617. The cubic root of 112447889 is about 482.6701435802.

The spelling of 112447889 in words is "one hundred twelve million, four hundred forty-seven thousand, eight hundred eighty-nine".