990059 has 8 divisors (see below), whose sum is σ = 1148928. Its totient is φ = 835560.

The previous prime is 990053. The next prime is 990137. The reversal of 990059 is 950099.

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 990059 - 2⁴ = 990043 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 990059.

It is not an unprimeable number, because it can be changed into a prime (990053) 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, 587 + ... + 1524.

It is an arithmetic number, because the mean of its divisors is an integer number (143616).

2⁹⁹⁰⁰⁵⁹ is an apocalyptic number.

990059 is a deficient number, since it is larger than the sum of its proper divisors (158869).

990059 is a wasteful number, since it uses less digits than its factorization.

990059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 990059 is about 995.0170852804. The cubic root of 990059 is about 99.6675291899.

The spelling of 990059 in words is "nine hundred ninety thousand, fifty-nine".