6617399 has 8 divisors (see below), whose sum is σ = 7066752. Its totient is φ = 6181560.

The previous prime is 6617383. The next prime is 6617407. The reversal of 6617399 is 9937166.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6617399 - 2⁴ = 6617383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6617329) 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, 2357 + ... + 4334.

It is an arithmetic number, because the mean of its divisors is an integer number (883344).

Almost surely, 2^6617399 is an apocalyptic number.

6617399 is a deficient number, since it is larger than the sum of its proper divisors (449353).

6617399 is a wasteful number, since it uses less digits than its factorization.

6617399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757.

The product of its digits is 61236, while the sum is 41.

The square root of 6617399 is about 2572.4305627169. The cubic root of 6617399 is about 187.7424324803.

The spelling of 6617399 in words is "six million, six hundred seventeen thousand, three hundred ninety-nine".