6495857 has 4 divisors (see below), whose sum is σ = 6517056. Its totient is φ = 6474660.

The previous prime is 6495847. The next prime is 6495871. The reversal of 6495857 is 7585946.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7585946 = 2 ⋅3792973.

It is a cyclic number.

It is not a de Polignac number, because 6495857 - 2⁶ = 6495793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6495847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10133 + ... + 10754.

It is an arithmetic number, because the mean of its divisors is an integer number (1629264).

Almost surely, 2^6495857 is an apocalyptic number.

It is an amenable number.

6495857 is a deficient number, since it is larger than the sum of its proper divisors (21199).

6495857 is a wasteful number, since it uses less digits than its factorization.

6495857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21198.

The product of its digits is 302400, while the sum is 44.

The square root of 6495857 is about 2548.6971181370. The cubic root of 6495857 is about 186.5858986605.

The spelling of 6495857 in words is "six million, four hundred ninety-five thousand, eight hundred fifty-seven".