4688993 has 2 divisors, whose sum is σ = 4688994. Its totient is φ = 4688992.

The previous prime is 4688977. The next prime is 4689017. The reversal of 4688993 is 3998864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3751969 + 937024 = 1937^2 + 968^2 .

It is a cyclic number.

It is not a de Polignac number, because 4688993 - 2⁴ = 4688977 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4688903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2344496 + 2344497.

It is an arithmetic number, because the mean of its divisors is an integer number (2344497).

Almost surely, 2^4688993 is an apocalyptic number.

It is an amenable number.

4688993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4688993 is an equidigital number, since it uses as much as digits as its factorization.

4688993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 47.

The square root of 4688993 is about 2165.4082755915. The cubic root of 4688993 is about 167.3760038726.

The spelling of 4688993 in words is "four million, six hundred eighty-eight thousand, nine hundred ninety-three".