68657885 has 8 divisors (see below), whose sum is σ = 84305760. Its totient is φ = 53648784.

The previous prime is 68657867. The next prime is 68657933. The reversal of 68657885 is 58875686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68657885 - 2¹² = 68653789 is a prime.

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, 159455 + ... + 159884.

It is an arithmetic number, because the mean of its divisors is an integer number (10538220).

Almost surely, 2^68657885 is an apocalyptic number.

It is an amenable number.

68657885 is a deficient number, since it is larger than the sum of its proper divisors (15647875).

68657885 is a wasteful number, since it uses less digits than its factorization.

68657885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319387.

The product of its digits is 3225600, while the sum is 53.

The square root of 68657885 is about 8286.0053705027. The cubic root of 68657885 is about 409.4775916372.

The spelling of 68657885 in words is "sixty-eight million, six hundred fifty-seven thousand, eight hundred eighty-five".