4693943621 has 2 divisors, whose sum is σ = 4693943622. Its totient is φ = 4693943620.

The previous prime is 4693943609. The next prime is 4693943641. The reversal of 4693943621 is 1263493964.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3197337025 + 1496606596 = 56545^2 + 38686^2 .

It is a cyclic number.

It is not a de Polignac number, because 4693943621 - 2¹⁴ = 4693927237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4693943641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2346971810 + 2346971811.

It is an arithmetic number, because the mean of its divisors is an integer number (2346971811).

Almost surely, 2^4693943621 is an apocalyptic number.

It is an amenable number.

4693943621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4693943621 is an equidigital number, since it uses as much as digits as its factorization.

4693943621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 47.

The square root of 4693943621 is about 68512.3610817785. The cubic root of 4693943621 is about 1674.3488813722.

The spelling of 4693943621 in words is "four billion, six hundred ninety-three million, nine hundred forty-three thousand, six hundred twenty-one".