6618992 has 20 divisors (see below), whose sum is σ = 13499880. Its totient is φ = 3135168.

The previous prime is 6618991. The next prime is 6619021. The reversal of 6618992 is 2998166.

It is a super-2 number, since 2×6618992² = 87622110192128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10583 + ... + 11190.

It is an arithmetic number, because the mean of its divisors is an integer number (674994).

Almost surely, 2^6618992 is an apocalyptic number.

It is an amenable number.

6618992 is an abundant number, since it is smaller than the sum of its proper divisors (6880888).

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

6618992 is a wasteful number, since it uses less digits than its factorization.

6618992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21800 (or 21794 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 6618992 is about 2572.7401734338. The cubic root of 6618992 is about 187.7574962891.

The spelling of 6618992 in words is "six million, six hundred eighteen thousand, nine hundred ninety-two".