676416065 has 16 divisors (see below), whose sum is σ = 875391888. Its totient is φ = 498790656.

The previous prime is 676416049. The next prime is 676416133. The reversal of 676416065 is 560614676.

It is a Cunningham number, because it is equal to 26008²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 100080016 + 576336049 = 10004^2 + 24007^2 .

It is not a de Polignac number, because 676416065 - 2⁴ = 676416049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40547 + ... + 54743.

It is an arithmetic number, because the mean of its divisors is an integer number (54711993).

Almost surely, 2^676416065 is an apocalyptic number.

676416065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

676416065 is a deficient number, since it is larger than the sum of its proper divisors (198975823).

676416065 is a wasteful number, since it uses less digits than its factorization.

676416065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14948.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 676416065 is about 26008.0000192249. Note that the first 4 decimals coincide. The cubic root of 676416065 is about 877.8183151028.

The spelling of 676416065 in words is "six hundred seventy-six million, four hundred sixteen thousand, sixty-five".