676565644 has 6 divisors (see below), whose sum is σ = 1183989884. Its totient is φ = 338282820.

The previous prime is 676565639. The next prime is 676565647. The reversal of 676565644 is 446565676.

It is a super-2 number, since 2×676565644² = 915482141282269472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (676565647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84570702 + ... + 84570709.

Almost surely, 2^676565644 is an apocalyptic number.

It is an amenable number.

676565644 is a deficient number, since it is larger than the sum of its proper divisors (507424240).

676565644 is a wasteful number, since it uses less digits than its factorization.

676565644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169141415 (or 169141413 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 49.

The square root of 676565644 is about 26010.8754946849. The cubic root of 676565644 is about 877.8830156696.

The spelling of 676565644 in words is "six hundred seventy-six million, five hundred sixty-five thousand, six hundred forty-four".