8257104979 has 4 divisors (see below), whose sum is σ = 8257361976. Its totient is φ = 8256847984.

The previous prime is 8257104899. The next prime is 8257105001. The reversal of 8257104979 is 9794017528.

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

It is a cyclic number.

It is not a de Polignac number, because 8257104979 - 2⁹ = 8257104467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8257102979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72034 + ... + 147319.

It is an arithmetic number, because the mean of its divisors is an integer number (2064340494).

Almost surely, 2^8257104979 is an apocalyptic number.

8257104979 is a deficient number, since it is larger than the sum of its proper divisors (256997).

8257104979 is a wasteful number, since it uses less digits than its factorization.

8257104979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256996.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The square root of 8257104979 is about 90868.6138278779. The cubic root of 8257104979 is about 2021.1999029739.

The spelling of 8257104979 in words is "eight billion, two hundred fifty-seven million, one hundred four thousand, nine hundred seventy-nine".