9999546 has 32 divisors (see below), whose sum is σ = 21216768. Its totient is φ = 3136320.

The previous prime is 9999533. The next prime is 9999593. The reversal of 9999546 is 6459999.

It is a super-2 number, since 2×9999546² = 199981840412232, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6156 + ... + 7608.

It is an arithmetic number, because the mean of its divisors is an integer number (663024).

Almost surely, 2^9999546 is an apocalyptic number.

9999546 is an abundant number, since it is smaller than the sum of its proper divisors (11217222).

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

9999546 is a wasteful number, since it uses less digits than its factorization.

9999546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526.

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

The square root of 9999546 is about 3162.2058756507. The cubic root of 9999546 is about 215.4402085760.

The spelling of 9999546 in words is "nine million, nine hundred ninety-nine thousand, five hundred forty-six".