67812716 has 6 divisors (see below), whose sum is σ = 118672260. Its totient is φ = 33906356.

The previous prime is 67812707. The next prime is 67812721. The reversal of 67812716 is 61721876.

It is a self number, because there is not a number n which added to its sum of digits gives 67812716.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8476586 + ... + 8476593.

It is an arithmetic number, because the mean of its divisors is an integer number (19778710).

Almost surely, 2^67812716 is an apocalyptic number.

It is an amenable number.

67812716 is a deficient number, since it is larger than the sum of its proper divisors (50859544).

67812716 is a wasteful number, since it uses less digits than its factorization.

67812716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16953183 (or 16953181 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 67812716 is about 8234.8476610075. The cubic root of 67812716 is about 407.7904457013.

The spelling of 67812716 in words is "sixty-seven million, eight hundred twelve thousand, seven hundred sixteen".