9999456 has 24 divisors (see below), whose sum is σ = 26248824. Its totient is φ = 3333120.

The previous prime is 9999433. The next prime is 9999463. The reversal of 9999456 is 6549999.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 9999399 and 9999408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51985 + ... + 52176.

It is an arithmetic number, because the mean of its divisors is an integer number (1093701).

Almost surely, 2^9999456 is an apocalyptic number.

9999456 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

9999456 is an abundant number, since it is smaller than the sum of its proper divisors (16249368).

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

9999456 is a wasteful number, since it uses less digits than its factorization.

9999456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104174 (or 104166 counting only the distinct ones).

The product of its digits is 787320, while the sum is 51.

The square root of 9999456 is about 3162.1916450462. The cubic root of 9999456 is about 215.4395622241.

The spelling of 9999456 in words is "nine million, nine hundred ninety-nine thousand, four hundred fifty-six".