6493538 has 4 divisors (see below), whose sum is σ = 9740310. Its totient is φ = 3246768.

The previous prime is 6493523. The next prime is 6493547. The reversal of 6493538 is 8353946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8353946 = 2 ⋅4176973.

It can be written as a sum of positive squares in only one way, i.e., 5094049 + 1399489 = 2257^2 + 1183^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1623383 + ... + 1623386.

Almost surely, 2^6493538 is an apocalyptic number.

6493538 is a deficient number, since it is larger than the sum of its proper divisors (3246772).

6493538 is a wasteful number, since it uses less digits than its factorization.

6493538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246771.

The product of its digits is 77760, while the sum is 38.

The square root of 6493538 is about 2548.2421392011. The cubic root of 6493538 is about 186.5636924964.

The spelling of 6493538 in words is "six million, four hundred ninety-three thousand, five hundred thirty-eight".