676694917 has 4 divisors (see below), whose sum is σ = 676949260. Its totient is φ = 676440576.

The previous prime is 676694897. The next prime is 676694947. The reversal of 676694917 is 719496676.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11519236 + 665175681 = 3394^2 + 25791^2 .

It is a cyclic number.

It is not a de Polignac number, because 676694917 - 2⁷ = 676694789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676694947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123138 + ... + 128515.

It is an arithmetic number, because the mean of its divisors is an integer number (169237315).

Almost surely, 2^676694917 is an apocalyptic number.

It is an amenable number.

676694917 is a deficient number, since it is larger than the sum of its proper divisors (254343).

676694917 is a wasteful number, since it uses less digits than its factorization.

676694917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254342.

The product of its digits is 3429216, while the sum is 55.

The square root of 676694917 is about 26013.3603557864. The cubic root of 676694917 is about 877.9389251712.

The spelling of 676694917 in words is "six hundred seventy-six million, six hundred ninety-four thousand, nine hundred seventeen".