998793554 has 16 divisors (see below), whose sum is σ = 1730530656. Its totient is φ = 427291200.

The previous prime is 998793547. The next prime is 998793563. The reversal of 998793554 is 455397899.

It is a junction number, because it is equal to n+sod(n) for n = 998793493 and 998793502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334912 + ... + 1335659.

It is an arithmetic number, because the mean of its divisors is an integer number (108158166).

Almost surely, 2^998793554 is an apocalyptic number.

998793554 is a deficient number, since it is larger than the sum of its proper divisors (731737102).

998793554 is a wasteful number, since it uses less digits than its factorization.

998793554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670601.

The product of its digits is 12247200, while the sum is 59.

The square root of 998793554 is about 31603.6952586244. The cubic root of 998793554 is about 999.5976895013.

The spelling of 998793554 in words is "nine hundred ninety-eight million, seven hundred ninety-three thousand, five hundred fifty-four".