990075999 has 8 divisors (see below), whose sum is σ = 1440110592. Its totient is φ = 600046040.

The previous prime is 990075967. The next prime is 990076013. The reversal of 990075999 is 999570099.

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

It is not a de Polignac number, because 990075999 - 2⁵ = 990075967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990074999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15001119 + ... + 15001184.

It is an arithmetic number, because the mean of its divisors is an integer number (180013824).

Almost surely, 2^990075999 is an apocalyptic number.

990075999 is a deficient number, since it is larger than the sum of its proper divisors (450034593).

990075999 is a wasteful number, since it uses less digits than its factorization.

990075999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30002317.

The product of its (nonzero) digits is 2066715, while the sum is 57.

The square root of 990075999 is about 31465.4731253163. The cubic root of 990075999 is about 996.6809960667.

The spelling of 990075999 in words is "nine hundred ninety million, seventy-five thousand, nine hundred ninety-nine".