6872564 has 6 divisors (see below), whose sum is σ = 12026994. Its totient is φ = 3436280.

The previous prime is 6872521. The next prime is 6872581. The reversal of 6872564 is 4652786.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5290000 + 1582564 = 2300^2 + 1258^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 859067 + ... + 859074.

It is an arithmetic number, because the mean of its divisors is an integer number (2004499).

Almost surely, 2^6872564 is an apocalyptic number.

It is an amenable number.

6872564 is a deficient number, since it is larger than the sum of its proper divisors (5154430).

6872564 is a wasteful number, since it uses less digits than its factorization.

6872564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718145 (or 1718143 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 6872564 is about 2621.5575522960. The cubic root of 6872564 is about 190.1251622221.

The spelling of 6872564 in words is "six million, eight hundred seventy-two thousand, five hundred sixty-four".