990395 has 8 divisors (see below), whose sum is σ = 1358304. Its totient is φ = 679104.

The previous prime is 990389. The next prime is 990397. The reversal of 990395 is 593099.

990395 = T₁₃₂ + T₁₃₃ + ... + T₂₀₁.

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 990395 - 2⁶ = 990331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 28297 = 990395 / (9 + 9 + 0 + 3 + 9 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990397) by changing a digit.

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, 14114 + ... + 14183.

It is an arithmetic number, because the mean of its divisors is an integer number (169788).

2⁹⁹⁰³⁹⁵ is an apocalyptic number.

990395 is a deficient number, since it is larger than the sum of its proper divisors (367909).

990395 is a wasteful number, since it uses less digits than its factorization.

990395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28309.

The product of its (nonzero) digits is 10935, while the sum is 35.

The square root of 990395 is about 995.1859122797. The cubic root of 990395 is about 99.6788027612.

The spelling of 990395 in words is "nine hundred ninety thousand, three hundred ninety-five".