998822533 has 32 divisors (see below), whose sum is σ = 1111587840. Its totient is φ = 894136320.

The previous prime is 998822519. The next prime is 998822537. The reversal of 998822533 is 335228899.

It is a cyclic number.

It is not a de Polignac number, because 998822533 - 2⁹ = 998822021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998822537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3886341 + ... + 3886597.

It is an arithmetic number, because the mean of its divisors is an integer number (34737120).

Almost surely, 2^998822533 is an apocalyptic number.

998822533 is the 18247-th octagonal number.

It is an amenable number.

998822533 is a deficient number, since it is larger than the sum of its proper divisors (112765307).

998822533 is a wasteful number, since it uses less digits than its factorization.

998822533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its digits is 933120, while the sum is 49.

The square root of 998822533 is about 31604.1537301665. The cubic root of 998822533 is about 999.6073568515.

The spelling of 998822533 in words is "nine hundred ninety-eight million, eight hundred twenty-two thousand, five hundred thirty-three".