4811993 has 2 divisors, whose sum is σ = 4811994. Its totient is φ = 4811992.

The previous prime is 4811953. The next prime is 4812011. The reversal of 4811993 is 3991184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4787344 + 24649 = 2188^2 + 157^2 .

It is a cyclic number.

It is not a de Polignac number, because 4811993 - 2¹⁶ = 4746457 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4811953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2405996 + 2405997.

It is an arithmetic number, because the mean of its divisors is an integer number (2405997).

Almost surely, 2^4811993 is an apocalyptic number.

It is an amenable number.

4811993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4811993 is an equidigital number, since it uses as much as digits as its factorization.

4811993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 4811993 is about 2193.6255377799. The cubic root of 4811993 is about 168.8269063262.

The spelling of 4811993 in words is "four million, eight hundred eleven thousand, nine hundred ninety-three".