8009990 has 8 divisors (see below), whose sum is σ = 14418000. Its totient is φ = 3203992.

The previous prime is 8009987. The next prime is 8009999. The reversal of 8009990 is 999008.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8009990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8009999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400490 + ... + 400509.

It is an arithmetic number, because the mean of its divisors is an integer number (1802250).

Almost surely, 2^8009990 is an apocalyptic number.

8009990 is a deficient number, since it is larger than the sum of its proper divisors (6408010).

8009990 is a wasteful number, since it uses less digits than its factorization.

8009990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801006.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 8009990 is about 2830.1925729533. The cubic root of 8009990 is about 200.0832153712.

The spelling of 8009990 in words is "eight million, nine thousand, nine hundred ninety".