998476579 has 4 divisors (see below), whose sum is σ = 998601520. Its totient is φ = 998351640.

The previous prime is 998476547. The next prime is 998476603. The reversal of 998476579 is 975674899.

998476579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 998476579 - 2⁵ = 998476547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 998476579.

It is not an unprimeable number, because it can be changed into a prime (998476519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49599 + ... + 66760.

It is an arithmetic number, because the mean of its divisors is an integer number (249650380).

Almost surely, 2^998476579 is an apocalyptic number.

998476579 is a deficient number, since it is larger than the sum of its proper divisors (124941).

998476579 is a wasteful number, since it uses less digits than its factorization.

998476579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124940.

The product of its digits is 34292160, while the sum is 64.

The square root of 998476579 is about 31598.6800198996. The cubic root of 998476579 is about 999.4919349136.

The spelling of 998476579 in words is "nine hundred ninety-eight million, four hundred seventy-six thousand, five hundred seventy-nine".