990070 has 16 divisors (see below), whose sum is σ = 1795248. Its totient is φ = 393120.

The previous prime is 990053. The next prime is 990137. The reversal of 990070 is 70099.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 990070.

It is an unprimeable number.

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, 1537 + ... + 2083.

It is an arithmetic number, because the mean of its divisors is an integer number (112203).

2⁹⁹⁰⁰⁷⁰ is an apocalyptic number.

990070 is a deficient number, since it is larger than the sum of its proper divisors (805178).

990070 is a wasteful number, since it uses less digits than its factorization.

990070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 990070 is about 995.0226128084. The cubic root of 990070 is about 99.6678983056.

The spelling of 990070 in words is "nine hundred ninety thousand, seventy".