2971316787 has 4 divisors (see below), whose sum is σ = 3961755720. Its totient is φ = 1980877856.

The previous prime is 2971316779. The next prime is 2971316819. The reversal of 2971316787 is 7876131792.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2971316787 - 2³ = 2971316779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2971318787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495219462 + ... + 495219467.

It is an arithmetic number, because the mean of its divisors is an integer number (990438930).

Almost surely, 2^2971316787 is an apocalyptic number.

2971316787 is a deficient number, since it is larger than the sum of its proper divisors (990438933).

2971316787 is an equidigital number, since it uses as much as digits as its factorization.

2971316787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990438932.

The product of its digits is 889056, while the sum is 51.

The square root of 2971316787 is about 54509.7861580836. The cubic root of 2971316787 is about 1437.6383593807.

The spelling of 2971316787 in words is "two billion, nine hundred seventy-one million, three hundred sixteen thousand, seven hundred eighty-seven".