9990995 has 8 divisors (see below), whose sum is σ = 13701984. Its totient is φ = 6850944.

The previous prime is 9990989. The next prime is 9990997. The reversal of 9990995 is 5990999.

9990995 is digitally balanced in base 2, base 3 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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 9990995 - 2¹⁴ = 9974611 is a prime.

It is a Duffinian number.

9990995 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (9990997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142694 + ... + 142763.

It is an arithmetic number, because the mean of its divisors is an integer number (1712748).

Almost surely, 2^9990995 is an apocalyptic number.

9990995 is a deficient number, since it is larger than the sum of its proper divisors (3710989).

9990995 is a wasteful number, since it uses less digits than its factorization.

9990995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285469.

The product of its (nonzero) digits is 295245, while the sum is 50.

The square root of 9990995 is about 3160.8535239710. The cubic root of 9990995 is about 215.3787806341.

The spelling of 9990995 in words is "nine million, nine hundred ninety thousand, nine hundred ninety-five".