6572780 has 12 divisors (see below), whose sum is σ = 13802880. Its totient is φ = 2629104.

The previous prime is 6572773. The next prime is 6572801. The reversal of 6572780 is 872756.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6572780.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164300 + ... + 164339.

It is an arithmetic number, because the mean of its divisors is an integer number (1150240).

Almost surely, 2^6572780 is an apocalyptic number.

It is an amenable number.

6572780 is an abundant number, since it is smaller than the sum of its proper divisors (7230100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6572780 is a wasteful number, since it uses less digits than its factorization.

6572780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328648 (or 328646 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 6572780 is about 2563.7433568905. The cubic root of 6572780 is about 187.3195181813.

The spelling of 6572780 in words is "six million, five hundred seventy-two thousand, seven hundred eighty".