2993991705 has 24 divisors (see below), whose sum is σ = 5260681608. Its totient is φ = 1574919936.

The previous prime is 2993991683. The next prime is 2993991731. The reversal of 2993991705 is 5071993992.

It can be written as a sum of positive squares in 4 ways, for example, as 41616 + 2993950089 = 204^2 + 54717^2 .

It is not a de Polignac number, because 2993991705 - 2¹² = 2993987609 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452422 + ... + 458991.

It is an arithmetic number, because the mean of its divisors is an integer number (219195067).

Almost surely, 2^2993991705 is an apocalyptic number.

It is an amenable number.

2993991705 is a deficient number, since it is larger than the sum of its proper divisors (2266689903).

2993991705 is a wasteful number, since it uses less digits than its factorization.

2993991705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911497 (or 911494 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 2993991705 is about 54717.3802826853. The cubic root of 2993991705 is about 1441.2860978310.

It can be divided in two parts, 299 and 3991705, that added together give a square (3992004 = 1998²).

The spelling of 2993991705 in words is "two billion, nine hundred ninety-three million, nine hundred ninety-one thousand, seven hundred five".