4327673621 has 2 divisors, whose sum is σ = 4327673622. Its totient is φ = 4327673620.

The previous prime is 4327673617. The next prime is 4327673671. The reversal of 4327673621 is 1263767234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4327666225 + 7396 = 65785^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 4327673621 - 2² = 4327673617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4327673671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2163836810 + 2163836811.

It is an arithmetic number, because the mean of its divisors is an integer number (2163836811).

Almost surely, 2^4327673621 is an apocalyptic number.

It is an amenable number.

4327673621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4327673621 is an equidigital number, since it uses as much as digits as its factorization.

4327673621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 41.

The square root of 4327673621 is about 65785.0562133985. The cubic root of 4327673621 is about 1629.6143241736.

The spelling of 4327673621 in words is "four billion, three hundred twenty-seven million, six hundred seventy-three thousand, six hundred twenty-one".