3572729 has 2 divisors, whose sum is σ = 3572730. Its totient is φ = 3572728.

The previous prime is 3572707. The next prime is 3572731. The reversal of 3572729 is 9272753.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1817104 + 1755625 = 1348^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 3572729 - 2⁸ = 3572473 is a prime.

Together with 3572731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3572029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786364 + 1786365.

It is an arithmetic number, because the mean of its divisors is an integer number (1786365).

Almost surely, 2^3572729 is an apocalyptic number.

It is an amenable number.

3572729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3572729 is an equidigital number, since it uses as much as digits as its factorization.

3572729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 35.

The square root of 3572729 is about 1890.1663947917. The cubic root of 3572729 is about 152.8739046790.

The spelling of 3572729 in words is "three million, five hundred seventy-two thousand, seven hundred twenty-nine".