68663708 has 6 divisors (see below), whose sum is σ = 120161496. Its totient is φ = 34331852.

The previous prime is 68663689. The next prime is 68663711. The reversal of 68663708 is 80736686.

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, 8582960 + ... + 8582967.

It is an arithmetic number, because the mean of its divisors is an integer number (20026916).

Almost surely, 2^68663708 is an apocalyptic number.

It is an amenable number.

68663708 is a deficient number, since it is larger than the sum of its proper divisors (51497788).

68663708 is a wasteful number, since it uses less digits than its factorization.

68663708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17165931 (or 17165929 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 68663708 is about 8286.3567386397. The cubic root of 68663708 is about 409.4891674896.

The spelling of 68663708 in words is "sixty-eight million, six hundred sixty-three thousand, seven hundred eight".