6990216 has 32 divisors (see below), whose sum is σ = 17850240. Its totient is φ = 2280128.

The previous prime is 6990199. The next prime is 6990227. The reversal of 6990216 is 6120996.

It is a happy number.

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, 1971 + ... + 4226.

It is an arithmetic number, because the mean of its divisors is an integer number (557820).

Almost surely, 2^6990216 is an apocalyptic number.

It is an amenable number.

6990216 is an abundant number, since it is smaller than the sum of its proper divisors (10860024).

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

6990216 is a wasteful number, since it uses less digits than its factorization.

6990216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253 (or 6249 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 6990216 is about 2643.9016623165. The cubic root of 6990216 is about 191.2039523468.

The spelling of 6990216 in words is "six million, nine hundred ninety thousand, two hundred sixteen".