996427998 has 24 divisors (see below), whose sum is σ = 2160615600. Its totient is φ = 331882944.

The previous prime is 996427979. The next prime is 996428029. The reversal of 996427998 is 899724699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2758 + ... + 44726.

It is an arithmetic number, because the mean of its divisors is an integer number (90025650).

Almost surely, 2^996427998 is an apocalyptic number.

996427998 is an abundant number, since it is smaller than the sum of its proper divisors (1164187602).

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

996427998 is a wasteful number, since it uses less digits than its factorization.

996427998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43296 (or 43293 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The square root of 996427998 is about 31566.2477656119. The cubic root of 996427998 is about 998.8079121579.

The spelling of 996427998 in words is "nine hundred ninety-six million, four hundred twenty-seven thousand, nine hundred ninety-eight".