6494687 has 4 divisors (see below), whose sum is σ = 6653136. Its totient is φ = 6336240.

The previous prime is 6494659. The next prime is 6494689. The reversal of 6494687 is 7864946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7864946 = 2 ⋅3932473.

It is a cyclic number.

It is not a de Polignac number, because 6494687 - 2⁶ = 6494623 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 (6494689) 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, 79163 + ... + 79244.

It is an arithmetic number, because the mean of its divisors is an integer number (1663284).

Almost surely, 2^6494687 is an apocalyptic number.

6494687 is a deficient number, since it is larger than the sum of its proper divisors (158449).

6494687 is a wasteful number, since it uses less digits than its factorization.

6494687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158448.

The product of its digits is 290304, while the sum is 44.

The square root of 6494687 is about 2548.4675787618. The cubic root of 6494687 is about 186.5746956938.

The spelling of 6494687 in words is "six million, four hundred ninety-four thousand, six hundred eighty-seven".