6642597 has 32 divisors (see below), whose sum is σ = 10378368. Its totient is φ = 3741696.

The previous prime is 6642593. The next prime is 6642613. The reversal of 6642597 is 7952466.

It is not a de Polignac number, because 6642597 - 2² = 6642593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642593) 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 31 ways as a sum of consecutive naturals, for example, 28393 + ... + 28625.

It is an arithmetic number, because the mean of its divisors is an integer number (324324).

Almost surely, 2^6642597 is an apocalyptic number.

It is an amenable number.

6642597 is a deficient number, since it is larger than the sum of its proper divisors (3735771).

6642597 is a wasteful number, since it uses less digits than its factorization.

6642597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its digits is 90720, while the sum is 39.

The square root of 6642597 is about 2577.3236118113. The cubic root of 6642597 is about 187.9804283987.

The spelling of 6642597 in words is "six million, six hundred forty-two thousand, five hundred ninety-seven".