2291708771 has 8 divisors (see below), whose sum is σ = 2501819904. Its totient is φ = 2081893320.

The previous prime is 2291708723. The next prime is 2291708863. The reversal of 2291708771 is 1778071922.

It is a happy number.

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 2291708771 - 2¹⁸ = 2291446627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2291708371) 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, 57551 + ... + 88856.

It is an arithmetic number, because the mean of its divisors is an integer number (312727488).

Almost surely, 2^2291708771 is an apocalyptic number.

2291708771 is a deficient number, since it is larger than the sum of its proper divisors (210111133).

2291708771 is a wasteful number, since it uses less digits than its factorization.

2291708771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147841.

The product of its (nonzero) digits is 98784, while the sum is 44.

The square root of 2291708771 is about 47871.7951512161. The cubic root of 2291708771 is about 1318.4180564891.

The spelling of 2291708771 in words is "two billion, two hundred ninety-one million, seven hundred eight thousand, seven hundred seventy-one".