989798567 has 8 divisors (see below), whose sum is σ = 1002706320. Its totient is φ = 976973760.

The previous prime is 989798539. The next prime is 989798569. The reversal of 989798567 is 765897989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 989798567 - 2⁸ = 989798311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989798497 and 989798506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989798569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3467 + ... + 44627.

It is an arithmetic number, because the mean of its divisors is an integer number (125338290).

Almost surely, 2^989798567 is an apocalyptic number.

989798567 is a deficient number, since it is larger than the sum of its proper divisors (12907753).

989798567 is a wasteful number, since it uses less digits than its factorization.

989798567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41473.

The product of its digits is 68584320, while the sum is 68.

The square root of 989798567 is about 31461.0643017683. The cubic root of 989798567 is about 996.5878931016.

The spelling of 989798567 in words is "nine hundred eighty-nine million, seven hundred ninety-eight thousand, five hundred sixty-seven".