990995 has 8 divisors (see below), whose sum is σ = 1214784. Its totient is φ = 775744.

The previous prime is 990989. The next prime is 991009. The reversal of 990995 is 599099.

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 990995 - 2¹⁰ = 989971 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1874 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (151848).

2⁹⁹⁰⁹⁹⁵ is an apocalyptic number.

990995 is a deficient number, since it is larger than the sum of its proper divisors (223789).

990995 is a wasteful number, since it uses less digits than its factorization.

990995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269.

The product of its (nonzero) digits is 32805, while the sum is 41.

The square root of 990995 is about 995.4873178499. The cubic root of 990995 is about 99.6989277983.

The spelling of 990995 in words is "nine hundred ninety thousand, nine hundred ninety-five".