8080840657 has 4 divisors (see below), whose sum is σ = 8506148080. Its totient is φ = 7655533236.

The previous prime is 8080840643. The next prime is 8080840667. The reversal of 8080840657 is 7560480808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8080840657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8080840627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212653683 + ... + 212653720.

It is an arithmetic number, because the mean of its divisors is an integer number (2126537020).

Almost surely, 2^8080840657 is an apocalyptic number.

It is an amenable number.

8080840657 is a deficient number, since it is larger than the sum of its proper divisors (425307423).

8080840657 is a wasteful number, since it uses less digits than its factorization.

8080840657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425307422.

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 8080840657 is about 89893.4961885453. The cubic root of 8080840657 is about 2006.7141562468.

The spelling of 8080840657 in words is "eight billion, eighty million, eight hundred forty thousand, six hundred fifty-seven".