68657308 has 12 divisors (see below), whose sum is σ = 120595552. Its totient is φ = 34201440.

The previous prime is 68657273. The next prime is 68657321. The reversal of 68657308 is 80375686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30585 + ... + 32752.

Almost surely, 2^68657308 is an apocalyptic number.

It is an amenable number.

68657308 is a deficient number, since it is larger than the sum of its proper divisors (51938244).

68657308 is a wasteful number, since it uses less digits than its factorization.

68657308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63612 (or 63610 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68657308 is about 8285.9705526872. The cubic root of 68657308 is about 409.4764445525.

The spelling of 68657308 in words is "sixty-eight million, six hundred fifty-seven thousand, three hundred eight".