68686084 has 12 divisors (see below), whose sum is σ = 120288924. Its totient is φ = 34317824.

The previous prime is 68686067. The next prime is 68686099. The reversal of 68686084 is 48068686.

It can be written as a sum of positive squares in 2 ways, for example, as 9734400 + 58951684 = 3120^2 + 7678^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684 + ... + 11740.

It is an arithmetic number, because the mean of its divisors is an integer number (10024077).

Almost surely, 2^68686084 is an apocalyptic number.

It is an amenable number.

68686084 is a deficient number, since it is larger than the sum of its proper divisors (51602840).

68686084 is a wasteful number, since it uses less digits than its factorization.

68686084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12614 (or 12612 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 68686084 is about 8287.7067998331. The cubic root of 68686084 is about 409.5336438452.

The spelling of 68686084 in words is "sixty-eight million, six hundred eighty-six thousand, eighty-four".