886243989 has 4 divisors (see below), whose sum is σ = 1181658656. Its totient is φ = 590829324.

The previous prime is 886243979. The next prime is 886243997. The reversal of 886243989 is 989342688.

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 not a de Polignac number, because 886243989 - 2⁵ = 886243957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (886243979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147707329 + ... + 147707334.

It is an arithmetic number, because the mean of its divisors is an integer number (295414664).

Almost surely, 2^886243989 is an apocalyptic number.

It is an amenable number.

886243989 is a deficient number, since it is larger than the sum of its proper divisors (295414667).

886243989 is a wasteful number, since it uses less digits than its factorization.

886243989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295414666.

The product of its digits is 5971968, while the sum is 57.

The square root of 886243989 is about 29769.8503355324. The cubic root of 886243989 is about 960.5451146723.

The spelling of 886243989 in words is "eight hundred eighty-six million, two hundred forty-three thousand, nine hundred eighty-nine".