68730672 has 40 divisors (see below), whose sum is σ = 178153776. Its totient is φ = 22832896.

The previous prime is 68730661. The next prime is 68730691. The reversal of 68730672 is 27603786.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68730672.

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, 12958 + ... + 17474.

Almost surely, 2^68730672 is an apocalyptic number.

It is an amenable number.

68730672 is an abundant number, since it is smaller than the sum of its proper divisors (109423104).

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

68730672 is a wasteful number, since it uses less digits than its factorization.

68730672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845 (or 4839 counting only the distinct ones).

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

The square root of 68730672 is about 8290.3963717062. The cubic root of 68730672 is about 409.6222417834.

It can be divided in two parts, 687306 and 72, that added together give a triangular number (687378 = T₁₁₇₂).

The spelling of 68730672 in words is "sixty-eight million, seven hundred thirty thousand, six hundred seventy-two".