68107636 has 6 divisors (see below), whose sum is σ = 119188370. Its totient is φ = 34053816.

The previous prime is 68107621. The next prime is 68107649. The reversal of 68107636 is 63670186.

It can be written as a sum of positive squares in only one way, i.e., 36072036 + 32035600 = 6006^2 + 5660^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68107595 and 68107604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8513451 + ... + 8513458.

Almost surely, 2^68107636 is an apocalyptic number.

It is an amenable number.

68107636 is a deficient number, since it is larger than the sum of its proper divisors (51080734).

68107636 is a wasteful number, since it uses less digits than its factorization.

68107636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17026913 (or 17026911 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 68107636 is about 8252.7350617841. The cubic root of 68107636 is about 408.3807559898.

The spelling of 68107636 in words is "sixty-eight million, one hundred seven thousand, six hundred thirty-six".