2991723067 has 2 divisors, whose sum is σ = 2991723068. Its totient is φ = 2991723066.

The previous prime is 2991723013. The next prime is 2991723079. The reversal of 2991723067 is 7603271992.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2991723067 - 2⁷ = 2991722939 is a prime.

It is not a weakly prime, because it can be changed into another prime (2991723167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1495861533 + 1495861534.

It is an arithmetic number, because the mean of its divisors is an integer number (1495861534).

Almost surely, 2^2991723067 is an apocalyptic number.

2991723067 is a deficient number, since it is larger than the sum of its proper divisors (1).

2991723067 is an equidigital number, since it uses as much as digits as its factorization.

2991723067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 2991723067 is about 54696.6458478031. The cubic root of 2991723067 is about 1440.9219705003.

The spelling of 2991723067 in words is "two billion, nine hundred ninety-one million, seven hundred twenty-three thousand, sixty-seven".