67728630 has 32 divisors (see below), whose sum is σ = 168156000. Its totient is φ = 17437952.

The previous prime is 67728623. The next prime is 67728631. The reversal of 67728630 is 3682776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67728631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38055 + ... + 39794.

It is an arithmetic number, because the mean of its divisors is an integer number (5254875).

Almost surely, 2^67728630 is an apocalyptic number.

67728630 is an abundant number, since it is smaller than the sum of its proper divisors (100427370).

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

67728630 is a wasteful number, since it uses less digits than its factorization.

67728630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77888.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 67728630 is about 8229.7405791434. The cubic root of 67728630 is about 407.6218261469.

The spelling of 67728630 in words is "sixty-seven million, seven hundred twenty-eight thousand, six hundred thirty".