8791311394 has 4 divisors (see below), whose sum is σ = 13186967094. Its totient is φ = 4395655696.

The previous prime is 8791311349. The next prime is 8791311427. The reversal of 8791311394 is 4931131978.

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

It can be written as a sum of positive squares in only one way, i.e., 8438810769 + 352500625 = 91863^2 + 18775^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197827847 + ... + 2197827850.

Almost surely, 2^8791311394 is an apocalyptic number.

8791311394 is a deficient number, since it is larger than the sum of its proper divisors (4395655700).

8791311394 is a wasteful number, since it uses less digits than its factorization.

8791311394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395655699.

The product of its digits is 163296, while the sum is 46.

The square root of 8791311394 is about 93761.9933341863. The cubic root of 8791311394 is about 2063.8805317709.

The spelling of 8791311394 in words is "eight billion, seven hundred ninety-one million, three hundred eleven thousand, three hundred ninety-four".