7890006 has 32 divisors (see below), whose sum is σ = 16892928. Its totient is φ = 2448000.

The previous prime is 7889977. The next prime is 7890013. The reversal of 7890006 is 6000987.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10131 + ... + 10881.

It is an arithmetic number, because the mean of its divisors is an integer number (527904).

Almost surely, 2^7890006 is an apocalyptic number.

7890006 is an abundant number, since it is smaller than the sum of its proper divisors (9002922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7890006 is a wasteful number, since it uses less digits than its factorization.

7890006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 7890006 is about 2808.9154490657. The cubic root of 7890006 is about 199.0791500169.

The spelling of 7890006 in words is "seven million, eight hundred ninety thousand, six".