3576721 has 2 divisors, whose sum is σ = 3576722. Its totient is φ = 3576720.

The previous prime is 3576691. The next prime is 3576733. The reversal of 3576721 is 1276753.

3576721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3168400 + 408321 = 1780^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 3576721 - 2⁷ = 3576593 is a prime.

It is a super-2 number, since 2×3576721² = 25585866223682, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3576761) 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, 1788360 + 1788361.

It is an arithmetic number, because the mean of its divisors is an integer number (1788361).

Almost surely, 2^3576721 is an apocalyptic number.

It is an amenable number.

3576721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3576721 is an equidigital number, since it uses as much as digits as its factorization.

3576721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 31.

The square root of 3576721 is about 1891.2220916645. Note that the first 3 decimals coincide. The cubic root of 3576721 is about 152.9308215318.

Subtracting from 3576721 its reverse (1276753), we obtain a cube (2299968 = 132³).

The spelling of 3576721 in words is "three million, five hundred seventy-six thousand, seven hundred twenty-one".