68866630 has 16 divisors (see below), whose sum is σ = 141668640. Its totient is φ = 23611392.

The previous prime is 68866627. The next prime is 68866631. The reversal of 68866630 is 3666886.

It is a super-2 number, since 2×68866630² = 9485225455113800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68866631) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 491835 + ... + 491974.

It is an arithmetic number, because the mean of its divisors is an integer number (8854290).

Almost surely, 2^68866630 is an apocalyptic number.

68866630 is an abundant number, since it is smaller than the sum of its proper divisors (72802010).

68866630 is a wasteful number, since it uses less digits than its factorization.

68866630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983823.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 68866630 is about 8298.5920492575. The cubic root of 68866630 is about 409.8921588275.

It can be divided in two parts, 68866 and 630, that added together give a palindrome (69496).

The spelling of 68866630 in words is "sixty-eight million, eight hundred sixty-six thousand, six hundred thirty".