4030993 has 2 divisors, whose sum is σ = 4030994. Its totient is φ = 4030992.

The previous prime is 4030981. The next prime is 4031047. The reversal of 4030993 is 3990304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3268864 + 762129 = 1808^2 + 873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4030993 is a prime.

4030993 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4030903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2015496 + 2015497.

It is an arithmetic number, because the mean of its divisors is an integer number (2015497).

Almost surely, 2^4030993 is an apocalyptic number.

It is an amenable number.

4030993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4030993 is an equidigital number, since it uses as much as digits as its factorization.

4030993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 4030993 is about 2007.7332990216. The cubic root of 4030993 is about 159.1490368468.

The spelling of 4030993 in words is "four million, thirty thousand, nine hundred ninety-three".