8791470782 has 4 divisors (see below), whose sum is σ = 13187206176. Its totient is φ = 4395735390.

The previous prime is 8791470781. The next prime is 8791470827. The reversal of 8791470782 is 2870741978.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8791470781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197867694 + ... + 2197867697.

It is an arithmetic number, because the mean of its divisors is an integer number (3296801544).

Almost surely, 2^8791470782 is an apocalyptic number.

8791470782 is a deficient number, since it is larger than the sum of its proper divisors (4395735394).

8791470782 is a wasteful number, since it uses less digits than its factorization.

8791470782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395735393.

The product of its (nonzero) digits is 1580544, while the sum is 53.

The square root of 8791470782 is about 93762.8432909327. The cubic root of 8791470782 is about 2063.8930045328.

The spelling of 8791470782 in words is "eight billion, seven hundred ninety-one million, four hundred seventy thousand, seven hundred eighty-two".