3627866321 has 2 divisors, whose sum is σ = 3627866322. Its totient is φ = 3627866320.

The previous prime is 3627866299. The next prime is 3627866371. The reversal of 3627866321 is 1236687263.

3627866321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2733198400 + 894667921 = 52280^2 + 29911^2 .

It is a cyclic number.

It is not a de Polignac number, because 3627866321 - 2⁶ = 3627866257 is a prime.

It is a super-2 number, since 2×3627866321² = 26322828086092150082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3627866371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1813933160 + 1813933161.

It is an arithmetic number, because the mean of its divisors is an integer number (1813933161).

Almost surely, 2^3627866321 is an apocalyptic number.

It is an amenable number.

3627866321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3627866321 is an equidigital number, since it uses as much as digits as its factorization.

3627866321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 44.

The square root of 3627866321 is about 60231.7716906949. The cubic root of 3627866321 is about 1536.5631910588.

The spelling of 3627866321 in words is "three billion, six hundred twenty-seven million, eight hundred sixty-six thousand, three hundred twenty-one".