68604636 has 12 divisors (see below), whose sum is σ = 160077512. Its totient is φ = 22868208.

The previous prime is 68604593. The next prime is 68604647. The reversal of 68604636 is 63640686.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 68604594 and 68604603.

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, 2858515 + ... + 2858538.

Almost surely, 2^68604636 is an apocalyptic number.

It is an amenable number.

68604636 is an abundant number, since it is smaller than the sum of its proper divisors (91472876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68604636 is a wasteful number, since it uses less digits than its factorization.

68604636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5717060 (or 5717058 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 68604636 is about 8282.7915584059. The cubic root of 68604636 is about 409.3717047382.

The spelling of 68604636 in words is "sixty-eight million, six hundred four thousand, six hundred thirty-six".