989070239 has 4 divisors (see below), whose sum is σ = 989562624. Its totient is φ = 988577856.

The previous prime is 989070227. The next prime is 989070253. The reversal of 989070239 is 932070989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932070989 = 557 ⋅1673377.

It is a cyclic number.

It is not a de Polignac number, because 989070239 - 2¹⁶ = 989004703 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989070193 and 989070202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989070139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243167 + ... + 247200.

It is an arithmetic number, because the mean of its divisors is an integer number (247390656).

Almost surely, 2^989070239 is an apocalyptic number.

989070239 is a deficient number, since it is larger than the sum of its proper divisors (492385).

989070239 is a wasteful number, since it uses less digits than its factorization.

989070239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492384.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 989070239 is about 31449.4871023360. The cubic root of 989070239 is about 996.3433918474.

The spelling of 989070239 in words is "nine hundred eighty-nine million, seventy thousand, two hundred thirty-nine".