9985722 has 8 divisors (see below), whose sum is σ = 19971456. Its totient is φ = 3328572.

The previous prime is 9985709. The next prime is 9985739. The reversal of 9985722 is 2275899.

It is a sphenic number, since it is the product of 3 distinct primes.

9985722 is an admirable number.

It is a super-2 number, since 2×9985722² = 199429287722568, which contains 22 as substring.

It is a d-powerful number, because it can be written as 9⁷ + 9⁷ + 8² + 5⁸ + 7⁵ + 2¹² + 2¹³ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832138 + ... + 832149.

It is an arithmetic number, because the mean of its divisors is an integer number (2496432).

Almost surely, 2^9985722 is an apocalyptic number.

9985722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9985722 is a wasteful number, since it uses less digits than its factorization.

9985722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664292.

The product of its digits is 90720, while the sum is 42.

The square root of 9985722 is about 3160.0193037385. The cubic root of 9985722 is about 215.3408834354.

The spelling of 9985722 in words is "nine million, nine hundred eighty-five thousand, seven hundred twenty-two".