6618396 has 24 divisors (see below), whose sum is σ = 15618960. Its totient is φ = 2180992.

The previous prime is 6618349. The next prime is 6618401. The reversal of 6618396 is 6938166.

It is a happy number.

It is a super-2 number, since 2×6618396² = 87606331225632, which contains 22 as substring.

It is a congruent number.

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, 2031 + ... + 4166.

It is an arithmetic number, because the mean of its divisors is an integer number (650790).

Almost surely, 2^6618396 is an apocalyptic number.

It is an amenable number.

6618396 is an abundant number, since it is smaller than the sum of its proper divisors (9000564).

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

6618396 is a wasteful number, since it uses less digits than its factorization.

6618396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293 (or 6291 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 6618396 is about 2572.6243410183. The cubic root of 6618396 is about 187.7518606461.

The spelling of 6618396 in words is "six million, six hundred eighteen thousand, three hundred ninety-six".