998753211 has 12 divisors (see below), whose sum is σ = 1442965992. Its totient is φ = 665686656.

The previous prime is 998753209. The next prime is 998753227. The reversal of 998753211 is 112357899.

It is not a de Polignac number, because 998753211 - 2¹ = 998753209 is a prime.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (998753251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43240 + ... + 62186.

It is an arithmetic number, because the mean of its divisors is an integer number (120247166).

Almost surely, 2^998753211 is an apocalyptic number.

998753211 is a deficient number, since it is larger than the sum of its proper divisors (444212781).

998753211 is a wasteful number, since it uses less digits than its factorization.

998753211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24810 (or 24807 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 998753211 is about 31603.0569882092. The cubic root of 998753211 is about 999.5842308266.

The spelling of 998753211 in words is "nine hundred ninety-eight million, seven hundred fifty-three thousand, two hundred eleven".