6872563 has 4 divisors (see below), whose sum is σ = 7002288. Its totient is φ = 6742840.

The previous prime is 6872521. The next prime is 6872581. The reversal of 6872563 is 3652786.

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 6872563 - 2¹⁷ = 6741491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6872513) 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, 64783 + ... + 64888.

It is an arithmetic number, because the mean of its divisors is an integer number (1750572).

Almost surely, 2^6872563 is an apocalyptic number.

6872563 is a deficient number, since it is larger than the sum of its proper divisors (129725).

6872563 is a wasteful number, since it uses less digits than its factorization.

6872563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129724.

The product of its digits is 60480, while the sum is 37.

The square root of 6872563 is about 2621.5573615696. The cubic root of 6872563 is about 190.1251530007.

The spelling of 6872563 in words is "six million, eight hundred seventy-two thousand, five hundred sixty-three".