6599641 has 4 divisors (see below), whose sum is σ = 6611472. Its totient is φ = 6587812.

The previous prime is 6599639. The next prime is 6599687. The reversal of 6599641 is 1469956.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6599641 - 2¹ = 6599639 is a prime.

It is a super-2 number, since 2×6599641² = 87110522657762, which contains 22 as substring.

It is a Duffinian number.

6599641 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6599594 and 6599603.

It is not an unprimeable number, because it can be changed into a prime (6599611) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5035 + ... + 6208.

It is an arithmetic number, because the mean of its divisors is an integer number (1652868).

Almost surely, 2^6599641 is an apocalyptic number.

It is an amenable number.

6599641 is a deficient number, since it is larger than the sum of its proper divisors (11831).

6599641 is a wasteful number, since it uses less digits than its factorization.

6599641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11830.

The product of its digits is 58320, while the sum is 40.

The square root of 6599641 is about 2568.9766445026. The cubic root of 6599641 is about 187.5743444442.

The spelling of 6599641 in words is "six million, five hundred ninety-nine thousand, six hundred forty-one".