68530072 has 16 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 31629216.

The previous prime is 68530067. The next prime is 68530073. The reversal of 68530072 is 27003586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68530073) 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 3 ways as a sum of consecutive naturals, for example, 329368 + ... + 329575.

It is an arithmetic number, because the mean of its divisors is an integer number (8648640).

Almost surely, 2^68530072 is an apocalyptic number.

It is an amenable number.

68530072 is an abundant number, since it is smaller than the sum of its proper divisors (69848168).

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

68530072 is a wasteful number, since it uses less digits than its factorization.

68530072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658962 (or 658958 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 68530072 is about 8278.2891952383. The cubic root of 68530072 is about 409.2233403375.

The spelling of 68530072 in words is "sixty-eight million, five hundred thirty thousand, seventy-two".