6990235 has 8 divisors (see below), whose sum is σ = 9586656. Its totient is φ = 4793280.

The previous prime is 6990227. The next prime is 6990241. The reversal of 6990235 is 5320996.

It is a happy number.

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

It is not a de Polignac number, because 6990235 - 2³ = 6990227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6990235.

It is an unprimeable number.

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, 99826 + ... + 99895.

It is an arithmetic number, because the mean of its divisors is an integer number (1198332).

Almost surely, 2^6990235 is an apocalyptic number.

6990235 is a deficient number, since it is larger than the sum of its proper divisors (2596421).

6990235 is a wasteful number, since it uses less digits than its factorization.

6990235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199733.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 6990235 is about 2643.9052554886. The cubic root of 6990235 is about 191.2041255828.

It can be divided in two parts, 6990 and 235, that added together give a square (7225 = 85²).

The spelling of 6990235 in words is "six million, nine hundred ninety thousand, two hundred thirty-five".