998991124 has 24 divisors (see below), whose sum is σ = 1761933600. Its totient is φ = 495594720.

The previous prime is 998991121. The next prime is 998991167. The reversal of 998991124 is 421199899.

998991124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998991121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386067 + ... + 388645.

It is an arithmetic number, because the mean of its divisors is an integer number (73413900).

Almost surely, 2^998991124 is an apocalyptic number.

It is an amenable number.

998991124 is a deficient number, since it is larger than the sum of its proper divisors (762942476).

998991124 is a wasteful number, since it uses less digits than its factorization.

998991124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303 (or 3301 counting only the distinct ones).

The product of its digits is 419904, while the sum is 52.

The square root of 998991124 is about 31606.8208461402. The cubic root of 998991124 is about 999.6635948443.

The spelling of 998991124 in words is "nine hundred ninety-eight million, nine hundred ninety-one thousand, one hundred twenty-four".