2993993 has 2 divisors, whose sum is σ = 2993994. Its totient is φ = 2993992.

The previous prime is 2993983. The next prime is 2994031. The reversal of 2993993 is 3993992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2917264 + 76729 = 1708^2 + 277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2993993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2993923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1496996 + 1496997.

It is an arithmetic number, because the mean of its divisors is an integer number (1496997).

2^2993993 is an apocalyptic number.

It is an amenable number.

2993993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2993993 is an equidigital number, since it uses as much as digits as its factorization.

2993993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118098, while the sum is 44.

The square root of 2993993 is about 1730.3158671179. The cubic root of 2993993 is about 144.1286305632.

Subtracting 2993993 from its reverse (3993992), we obtain a palindrome (999999).

The spelling of 2993993 in words is "two million, nine hundred ninety-three thousand, nine hundred ninety-three".