2991743093 has 2 divisors, whose sum is σ = 2991743094. Its totient is φ = 2991743092.

The previous prime is 2991743089. The next prime is 2991743141. The reversal of 2991743093 is 3903471992.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1576328209 + 1415414884 = 39703^2 + 37622^2 .

It is a cyclic number.

It is not a de Polignac number, because 2991743093 - 2² = 2991743089 is a prime.

It is a super-3 number, since 3×2991743093³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2991743893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1495871546 + 1495871547.

It is an arithmetic number, because the mean of its divisors is an integer number (1495871547).

Almost surely, 2^2991743093 is an apocalyptic number.

It is an amenable number.

2991743093 is a deficient number, since it is larger than the sum of its proper divisors (1).

2991743093 is an equidigital number, since it uses as much as digits as its factorization.

2991743093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 2991743093 is about 54696.8289117386. The cubic root of 2991743093 is about 1440.9251855750.

The spelling of 2991743093 in words is "two billion, nine hundred ninety-one million, seven hundred forty-three thousand, ninety-three".