6990291 has 54 divisors (see below), whose sum is σ = 13008996. Its totient is φ = 3603600.

The previous prime is 6990289. The next prime is 6990307. The reversal of 6990291 is 1920996.

It is not a de Polignac number, because 6990291 - 2¹ = 6990289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6990241) 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 53 ways as a sum of consecutive naturals, for example, 53296 + ... + 53426.

Almost surely, 2^6990291 is an apocalyptic number.

6990291 is a deficient number, since it is larger than the sum of its proper divisors (6018705).

6990291 is a wasteful number, since it uses less digits than its factorization.

6990291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 6990291 is about 2643.9158458620. The cubic root of 6990291 is about 191.2046361714.

The spelling of 6990291 in words is "six million, nine hundred ninety thousand, two hundred ninety-one".