68686502 has 16 divisors (see below), whose sum is σ = 105051600. Its totient is φ = 33672480.

The previous prime is 68686469. The next prime is 68686517. The reversal of 68686502 is 20568686.

It is a self number, because there is not a number n which added to its sum of digits gives 68686502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83252 + ... + 84072.

It is an arithmetic number, because the mean of its divisors is an integer number (6565725).

Almost surely, 2^68686502 is an apocalyptic number.

68686502 is a deficient number, since it is larger than the sum of its proper divisors (36365098).

68686502 is a wasteful number, since it uses less digits than its factorization.

68686502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 68686502 is about 8287.7320178683. The cubic root of 68686502 is about 409.5344746040.

The spelling of 68686502 in words is "sixty-eight million, six hundred eighty-six thousand, five hundred two".