3652547021 has 2 divisors, whose sum is σ = 3652547022. Its totient is φ = 3652547020.

The previous prime is 3652546969. The next prime is 3652547029. The reversal of 3652547021 is 1207452563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3415818025 + 236728996 = 58445^2 + 15386^2 .

It is a cyclic number.

It is not a de Polignac number, because 3652547021 - 2³⁰ = 2578805197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3652547029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1826273510 + 1826273511.

It is an arithmetic number, because the mean of its divisors is an integer number (1826273511).

Almost surely, 2^3652547021 is an apocalyptic number.

It is an amenable number.

3652547021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3652547021 is an equidigital number, since it uses as much as digits as its factorization.

3652547021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 3652547021 is about 60436.3054876785. The cubic root of 3652547021 is about 1540.0397781652.

Adding to 3652547021 its reverse (1207452563), we get a palindrome (4859999584).

The spelling of 3652547021 in words is "three billion, six hundred fifty-two million, five hundred forty-seven thousand, twenty-one".