6533963 has 4 divisors (see below), whose sum is σ = 6744768. Its totient is φ = 6323160.

The previous prime is 6533951. The next prime is 6533977. The reversal of 6533963 is 3693356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6533963 - 2⁸ = 6533707 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6533983) 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 3 ways as a sum of consecutive naturals, for example, 105356 + ... + 105417.

It is an arithmetic number, because the mean of its divisors is an integer number (1686192).

Almost surely, 2^6533963 is an apocalyptic number.

6533963 is a deficient number, since it is larger than the sum of its proper divisors (210805).

6533963 is a wasteful number, since it uses less digits than its factorization.

6533963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210804.

The product of its digits is 43740, while the sum is 35.

The square root of 6533963 is about 2556.1617710935. The cubic root of 6533963 is about 186.9500376499.

The spelling of 6533963 in words is "six million, five hundred thirty-three thousand, nine hundred sixty-three".