998580941 has 4 divisors (see below), whose sum is σ = 1019827392. Its totient is φ = 977334492.

The previous prime is 998580917. The next prime is 998580977. The reversal of 998580941 is 149085899.

998580941 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 149085899 = 181 ⋅823679.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998580941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998580241) 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, 10623155 + ... + 10623248.

It is an arithmetic number, because the mean of its divisors is an integer number (254956848).

Almost surely, 2^998580941 is an apocalyptic number.

It is an amenable number.

998580941 is a deficient number, since it is larger than the sum of its proper divisors (21246451).

998580941 is a wasteful number, since it uses less digits than its factorization.

998580941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21246450.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 998580941 is about 31600.3313431996. The cubic root of 998580941 is about 999.5267564092.

The spelling of 998580941 in words is "nine hundred ninety-eight million, five hundred eighty thousand, nine hundred forty-one".