9889995 has 8 divisors (see below), whose sum is σ = 15824016. Its totient is φ = 5274656.

The previous prime is 9889987. The next prime is 9890009. The reversal of 9889995 is 5999889.

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

It is a cyclic number.

It is not a de Polignac number, because 9889995 - 2³ = 9889987 is a prime.

It is a super-2 number, since 2×9889995² = 195624002200050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 329652 + ... + 329681.

It is an arithmetic number, because the mean of its divisors is an integer number (1978002).

Almost surely, 2^9889995 is an apocalyptic number.

9889995 is a deficient number, since it is larger than the sum of its proper divisors (5934021).

9889995 is a wasteful number, since it uses less digits than its factorization.

9889995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659341.

The product of its digits is 2099520, while the sum is 57.

The square root of 9889995 is about 3144.8362437494. The cubic root of 9889995 is about 214.6505590943.

The spelling of 9889995 in words is "nine million, eight hundred eighty-nine thousand, nine hundred ninety-five".