989324387 has 4 divisors (see below), whose sum is σ = 990521496. Its totient is φ = 988127280.

The previous prime is 989324377. The next prime is 989324407. The reversal of 989324387 is 783423989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783423989 = 227 ⋅3451207.

It is a cyclic number.

It is not a de Polignac number, because 989324387 - 2²⁰ = 988275811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989324377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597314 + ... + 598967.

It is an arithmetic number, because the mean of its divisors is an integer number (247630374).

Almost surely, 2^989324387 is an apocalyptic number.

989324387 is a deficient number, since it is larger than the sum of its proper divisors (1197109).

989324387 is a wasteful number, since it uses less digits than its factorization.

989324387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197108.

The product of its digits is 2612736, while the sum is 53.

The square root of 989324387 is about 31453.5274174456. The cubic root of 989324387 is about 996.4287235002.

The spelling of 989324387 in words is "nine hundred eighty-nine million, three hundred twenty-four thousand, three hundred eighty-seven".