998580539 has 8 divisors (see below), whose sum is σ = 1092597168. Its totient is φ = 905103360.

The previous prime is 998580521. The next prime is 998580547. The reversal of 998580539 is 935085899.

998580539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 998580539 - 2²⁸ = 730145083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998580509) 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, 130982 + ... + 138395.

It is an arithmetic number, because the mean of its divisors is an integer number (136574646).

Almost surely, 2^998580539 is an apocalyptic number.

998580539 is a deficient number, since it is larger than the sum of its proper divisors (94016629).

998580539 is a wasteful number, since it uses less digits than its factorization.

998580539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269725.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The square root of 998580539 is about 31600.3249825061. The cubic root of 998580539 is about 999.5266222822.

The spelling of 998580539 in words is "nine hundred ninety-eight million, five hundred eighty thousand, five hundred thirty-nine".