6999916 has 24 divisors (see below), whose sum is σ = 15273216. Its totient is φ = 2727120.

The previous prime is 6999911. The next prime is 6999929. The reversal of 6999916 is 6199996.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6999916.

It is not an unprimeable number, because it can be changed into a prime (6999911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11056 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (636384).

Almost surely, 2^6999916 is an apocalyptic number.

It is an amenable number.

6999916 is an abundant number, since it is smaller than the sum of its proper divisors (8273300).

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

6999916 is a wasteful number, since it uses less digits than its factorization.

6999916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22749 (or 22747 counting only the distinct ones).

The product of its digits is 236196, while the sum is 49.

The square root of 6999916 is about 2645.7354365091. The cubic root of 6999916 is about 191.2923531017.

The spelling of 6999916 in words is "six million, nine hundred ninety-nine thousand, nine hundred sixteen".