68675644 has 12 divisors (see below), whose sum is σ = 122977624. Its totient is φ = 33539184.

The previous prime is 68675627. The next prime is 68675689. The reversal of 68675644 is 44657686.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68675594 and 68675603.

It is a congruent number.

It is an unprimeable number.

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, 199467 + ... + 199810.

Almost surely, 2^68675644 is an apocalyptic number.

It is an amenable number.

68675644 is a deficient number, since it is larger than the sum of its proper divisors (54301980).

68675644 is a wasteful number, since it uses less digits than its factorization.

68675644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399324 (or 399322 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 68675644 is about 8287.0769273611. The cubic root of 68675644 is about 409.5128936551.

The spelling of 68675644 in words is "sixty-eight million, six hundred seventy-five thousand, six hundred forty-four".