6990670 has 16 divisors (see below), whose sum is σ = 13245840. Its totient is φ = 2649024.

The previous prime is 6990667. The next prime is 6990673. The reversal of 6990670 is 760996.

It is an interprime number because it is at equal distance from previous prime (6990667) and next prime (6990673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990673) 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, 18207 + ... + 18586.

It is an arithmetic number, because the mean of its divisors is an integer number (827865).

Almost surely, 2^6990670 is an apocalyptic number.

6990670 is a deficient number, since it is larger than the sum of its proper divisors (6255170).

6990670 is a wasteful number, since it uses less digits than its factorization.

6990670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36819.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 6990670 is about 2643.9875188813. The cubic root of 6990670 is about 191.2080916903.

The spelling of 6990670 in words is "six million, nine hundred ninety thousand, six hundred seventy".