998154285 has 16 divisors (see below), whose sum is σ = 1623229440. Its totient is φ = 523621440.

The previous prime is 998154239. The next prime is 998154293. The reversal of 998154285 is 582451899.

It is not a de Polignac number, because 998154285 - 2⁶ = 998154221 is a prime.

It is a super-2 number, since 2×998154285² = 1992623953327722450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544525 + ... + 546354.

It is an arithmetic number, because the mean of its divisors is an integer number (101451840).

Almost surely, 2^998154285 is an apocalyptic number.

It is an amenable number.

998154285 is a deficient number, since it is larger than the sum of its proper divisors (625075155).

998154285 is a wasteful number, since it uses less digits than its factorization.

998154285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090948.

The product of its digits is 1036800, while the sum is 51.

The square root of 998154285 is about 31593.5798066633. The cubic root of 998154285 is about 999.3843827599.

The spelling of 998154285 in words is "nine hundred ninety-eight million, one hundred fifty-four thousand, two hundred eighty-five".