6990006 has 8 divisors (see below), whose sum is σ = 13980024. Its totient is φ = 2330000.

The previous prime is 6990001. The next prime is 6990017. The reversal of 6990006 is 6000996.

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

6990006 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582495 + ... + 582506.

It is an arithmetic number, because the mean of its divisors is an integer number (1747503).

Almost surely, 2^6990006 is an apocalyptic number.

6990006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6990006 is a wasteful number, since it uses less digits than its factorization.

6990006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165006.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 6990006 is about 2643.8619479844. The cubic root of 6990006 is about 191.2020376118.

The spelling of 6990006 in words is "six million, nine hundred ninety thousand, six".