2791309317 has 8 divisors (see below), whose sum is σ = 3725161440. Its totient is φ = 1859165040.

The previous prime is 2791309307. The next prime is 2791309331. The reversal of 2791309317 is 7139031972.

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

It is not a de Polignac number, because 2791309317 - 2⁸ = 2791309061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791309307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423142 + ... + 429687.

It is an arithmetic number, because the mean of its divisors is an integer number (465645180).

Almost surely, 2^2791309317 is an apocalyptic number.

It is an amenable number.

2791309317 is a deficient number, since it is larger than the sum of its proper divisors (933852123).

2791309317 is a wasteful number, since it uses less digits than its factorization.

2791309317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853923.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 2791309317 is about 52832.8431659702. The cubic root of 2791309317 is about 1408.0000008407. Note that the first 6 decimals are identical.

The spelling of 2791309317 in words is "two billion, seven hundred ninety-one million, three hundred nine thousand, three hundred seventeen".