6542657 has 16 divisors (see below), whose sum is σ = 7439040. Its totient is φ = 5702400.

The previous prime is 6542647. The next prime is 6542681. The reversal of 6542657 is 7562456.

It is not a de Polignac number, because 6542657 - 2⁸ = 6542401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6542647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40058 + ... + 40220.

It is an arithmetic number, because the mean of its divisors is an integer number (464940).

Almost surely, 2^6542657 is an apocalyptic number.

It is an amenable number.

6542657 is a deficient number, since it is larger than the sum of its proper divisors (896383).

6542657 is a wasteful number, since it uses less digits than its factorization.

6542657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304.

The product of its digits is 50400, while the sum is 35.

The square root of 6542657 is about 2557.8618023654. The cubic root of 6542657 is about 187.0329186045.

The spelling of 6542657 in words is "six million, five hundred forty-two thousand, six hundred fifty-seven".