998436956 has 24 divisors (see below), whose sum is σ = 1908923520. Its totient is φ = 453164400.

The previous prime is 998436953. The next prime is 998436991. The reversal of 998436956 is 659634899.

998436956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 998436895 and 998436904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998436953) 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, 13985 + ... + 46823.

It is an arithmetic number, because the mean of its divisors is an integer number (79538480).

Almost surely, 2^998436956 is an apocalyptic number.

It is an amenable number.

998436956 is a deficient number, since it is larger than the sum of its proper divisors (910486564).

998436956 is a wasteful number, since it uses less digits than its factorization.

998436956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33545 (or 33543 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 59.

The square root of 998436956 is about 31598.0530412872. The cubic root of 998436956 is about 999.4787136411.

The spelling of 998436956 in words is "nine hundred ninety-eight million, four hundred thirty-six thousand, nine hundred fifty-six".