9881706 has 8 divisors (see below), whose sum is σ = 19763424. Its totient is φ = 3293900.

The previous prime is 9881693. The next prime is 9881713. The reversal of 9881706 is 6071889.

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

9881706 is an admirable number.

It is a super-2 number, since 2×9881706² = 195296226940872, 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 3 ways as a sum of consecutive naturals, for example, 823470 + ... + 823481.

It is an arithmetic number, because the mean of its divisors is an integer number (2470428).

Almost surely, 2^9881706 is an apocalyptic number.

9881706 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.

9881706 is a wasteful number, since it uses less digits than its factorization.

9881706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646956.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 9881706 is about 3143.5180928380. The cubic root of 9881706 is about 214.5905747098.

The spelling of 9881706 in words is "nine million, eight hundred eighty-one thousand, seven hundred six".