2991000047 has 8 divisors (see below), whose sum is σ = 3418916256. Its totient is φ = 2563241472.

The previous prime is 2991000011. The next prime is 2991000059. The reversal of 2991000047 is 7400001992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2991000047 - 2⁶ = 2990999983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2990999977 and 2991000022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991000647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4523 + ... + 77475.

It is an arithmetic number, because the mean of its divisors is an integer number (427364532).

Almost surely, 2^2991000047 is an apocalyptic number.

2991000047 is a deficient number, since it is larger than the sum of its proper divisors (427916209).

2991000047 is an equidigital number, since it uses as much as digits as its factorization.

2991000047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78817.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 2991000047 is about 54690.0360851956. The cubic root of 2991000047 is about 1440.8058836258.

The spelling of 2991000047 in words is "two billion, nine hundred ninety-one million, forty-seven", and thus it is an aban number.