3629921521 has 2 divisors, whose sum is σ = 3629921522. Its totient is φ = 3629921520.

The previous prime is 3629921513. The next prime is 3629921527. The reversal of 3629921521 is 1251299263.

3629921521 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., 2071251121 + 1558670400 = 45511^2 + 39480^2 .

It is a cyclic number.

It is not a de Polignac number, because 3629921521 - 2³ = 3629921513 is a prime.

It is not a weakly prime, because it can be changed into another prime (3629921527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1814960760 + 1814960761.

It is an arithmetic number, because the mean of its divisors is an integer number (1814960761).

Almost surely, 2^3629921521 is an apocalyptic number.

It is an amenable number.

3629921521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3629921521 is an equidigital number, since it uses as much as digits as its factorization.

3629921521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 40.

The square root of 3629921521 is about 60248.8300384331. The cubic root of 3629921521 is about 1536.8532925720.

The spelling of 3629921521 in words is "three billion, six hundred twenty-nine million, nine hundred twenty-one thousand, five hundred twenty-one".