6990290 has 16 divisors (see below), whose sum is σ = 13245120. Its totient is φ = 2648880.

The previous prime is 6990289. The next prime is 6990307. The reversal of 6990290 is 920996.

It is a self number, because there is not a number n which added to its sum of digits gives 6990290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18206 + ... + 18585.

It is an arithmetic number, because the mean of its divisors is an integer number (827820).

Almost surely, 2^6990290 is an apocalyptic number.

6990290 is a deficient number, since it is larger than the sum of its proper divisors (6254830).

6990290 is a wasteful number, since it uses less digits than its factorization.

6990290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36817.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 6990290 is about 2643.9156567485. The cubic root of 6990290 is about 191.2046270537.

The spelling of 6990290 in words is "six million, nine hundred ninety thousand, two hundred ninety".