998099541 has 6 divisors (see below), whose sum is σ = 1441699350. Its totient is φ = 665399688.

The previous prime is 998099491. The next prime is 998099549. The reversal of 998099541 is 145990899.

998099541 is a `hidden beast` number, since 9 + 9 + 8 + 0 + 99 + 541 = 666.

It can be written as a sum of positive squares in only one way, i.e., 980003025 + 18096516 = 31305^2 + 4254^2 .

It is not a de Polignac number, because 998099541 - 2⁹ = 998099029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998099549) 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 5 ways as a sum of consecutive naturals, for example, 55449966 + ... + 55449983.

It is an arithmetic number, because the mean of its divisors is an integer number (240283225).

Almost surely, 2^998099541 is an apocalyptic number.

It is an amenable number.

998099541 is a deficient number, since it is larger than the sum of its proper divisors (443599809).

998099541 is a wasteful number, since it uses less digits than its factorization.

998099541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110899955 (or 110899952 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 54.

The square root of 998099541 is about 31592.7134162294. The cubic root of 998099541 is about 999.3661119375.

The spelling of 998099541 in words is "nine hundred ninety-eight million, ninety-nine thousand, five hundred forty-one".