4519993 has 2 divisors, whose sum is σ = 4519994. Its totient is φ = 4519992.

The previous prime is 4519981. The next prime is 4519997. The reversal of 4519993 is 3999154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3892729 + 627264 = 1973^2 + 792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4519993 is a prime.

It is not a weakly prime, because it can be changed into another prime (4519997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2259996 + 2259997.

It is an arithmetic number, because the mean of its divisors is an integer number (2259997).

Almost surely, 2^4519993 is an apocalyptic number.

It is an amenable number.

4519993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4519993 is an equidigital number, since it uses as much as digits as its factorization.

4519993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 40.

The square root of 4519993 is about 2126.0275162848. The cubic root of 4519993 is about 165.3405028361.

The spelling of 4519993 in words is "four million, five hundred nineteen thousand, nine hundred ninety-three".