998613924 has 144 divisors (see below), whose sum is σ = 2976757056. Its totient is φ = 257644800.

The previous prime is 998613923. The next prime is 998613929. The reversal of 998613924 is 429316899.

998613924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (998613923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1170282 + ... + 1171134.

It is an arithmetic number, because the mean of its divisors is an integer number (20671924).

Almost surely, 2^998613924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998613924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488378528).

998613924 is an abundant number, since it is smaller than the sum of its proper divisors (1978143132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998613924 is a wasteful number, since it uses less digits than its factorization.

998613924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1057 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 998613924 is about 31600.8532163295. The cubic root of 998613924 is about 999.5377610347.

The spelling of 998613924 in words is "nine hundred ninety-eight million, six hundred thirteen thousand, nine hundred twenty-four".