6572749 has 2 divisors, whose sum is σ = 6572750. Its totient is φ = 6572748.

The previous prime is 6572747. The next prime is 6572759. The reversal of 6572749 is 9472756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5175625 + 1397124 = 2275^2 + 1182^2 .

It is a cyclic number.

It is not a de Polignac number, because 6572749 - 2¹ = 6572747 is a prime.

Together with 6572747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6572743) by changing a digit.

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 as a sum of consecutive naturals, namely, 3286374 + 3286375.

It is an arithmetic number, because the mean of its divisors is an integer number (3286375).

Almost surely, 2^6572749 is an apocalyptic number.

It is an amenable number.

6572749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6572749 is an equidigital number, since it uses as much as digits as its factorization.

6572749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 6572749 is about 2563.7373110364. The cubic root of 6572749 is about 187.3192236882.

The spelling of 6572749 in words is "six million, five hundred seventy-two thousand, seven hundred forty-nine".