68830638 has 16 divisors (see below), whose sum is σ = 137745360. Its totient is φ = 22929536.

The previous prime is 68830621. The next prime is 68830649. The reversal of 68830638 is 83603886.

It is a self number, because there is not a number n which added to its sum of digits gives 68830638.

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, 13456 + ... + 17852.

It is an arithmetic number, because the mean of its divisors is an integer number (8609085).

Almost surely, 2^68830638 is an apocalyptic number.

68830638 is an abundant number, since it is smaller than the sum of its proper divisors (68914722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68830638 is a wasteful number, since it uses less digits than its factorization.

68830638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7011.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 68830638 is about 8296.4232052132. The cubic root of 68830638 is about 409.8207386083.

The spelling of 68830638 in words is "sixty-eight million, eight hundred thirty thousand, six hundred thirty-eight".