2947087993 has 2 divisors, whose sum is σ = 2947087994. Its totient is φ = 2947087992.

The previous prime is 2947087991. The next prime is 2947088017. The reversal of 2947087993 is 3997807492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2494802704 + 452285289 = 49948^2 + 21267^2 .

It is a cyclic number.

It is not a de Polignac number, because 2947087993 - 2¹ = 2947087991 is a prime.

Together with 2947087991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2947087991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473543996 + 1473543997.

It is an arithmetic number, because the mean of its divisors is an integer number (1473543997).

Almost surely, 2^2947087993 is an apocalyptic number.

It is an amenable number.

2947087993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2947087993 is an equidigital number, since it uses as much as digits as its factorization.

2947087993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 58.

The square root of 2947087993 is about 54287.0886399335. The cubic root of 2947087993 is about 1433.7200795869.

The spelling of 2947087993 in words is "two billion, nine hundred forty-seven million, eighty-seven thousand, nine hundred ninety-three".