115847889 has 4 divisors (see below), whose sum is σ = 154463856. Its totient is φ = 77231924.

The previous prime is 115847867. The next prime is 115847923. The reversal of 115847889 is 988748511.

It is a happy number.

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 not a de Polignac number, because 115847889 - 2⁷ = 115847761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115847839) 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, 19307979 + ... + 19307984.

It is an arithmetic number, because the mean of its divisors is an integer number (38615964).

Almost surely, 2^115847889 is an apocalyptic number.

It is an amenable number.

115847889 is a deficient number, since it is larger than the sum of its proper divisors (38615967).

115847889 is an equidigital number, since it uses as much as digits as its factorization.

115847889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38615966.

The product of its digits is 645120, while the sum is 51.

The square root of 115847889 is about 10763.2657218894. The cubic root of 115847889 is about 487.4866289561.

The spelling of 115847889 in words is "one hundred fifteen million, eight hundred forty-seven thousand, eight hundred eighty-nine".