6681572 has 12 divisors (see below), whose sum is σ = 11734716. Its totient is φ = 3328800.

The previous prime is 6681557. The next prime is 6681581. The reversal of 6681572 is 2751866.

It can be written as a sum of positive squares in 2 ways, for example, as 6031936 + 649636 = 2456^2 + 806^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679 + ... + 4022.

It is an arithmetic number, because the mean of its divisors is an integer number (977893).

Almost surely, 2^6681572 is an apocalyptic number.

It is an amenable number.

6681572 is a deficient number, since it is larger than the sum of its proper divisors (5053144).

6681572 is a wasteful number, since it uses less digits than its factorization.

6681572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5998 (or 5996 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 6681572 is about 2584.8736913049. The cubic root of 6681572 is about 188.3473659282.

The spelling of 6681572 in words is "six million, six hundred eighty-one thousand, five hundred seventy-two".