67727047 has 4 divisors (see below), whose sum is σ = 69168096. Its totient is φ = 66286000.

The previous prime is 67727027. The next prime is 67727059. The reversal of 67727047 is 74072776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67727047 - 2¹¹ = 67724999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67727027) 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, 720454 + ... + 720547.

It is an arithmetic number, because the mean of its divisors is an integer number (17292024).

Almost surely, 2^67727047 is an apocalyptic number.

67727047 is a deficient number, since it is larger than the sum of its proper divisors (1441049).

67727047 is a wasteful number, since it uses less digits than its factorization.

67727047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441048.

The product of its (nonzero) digits is 115248, while the sum is 40.

The square root of 67727047 is about 8229.6444030104. The cubic root of 67727047 is about 407.6186503832.

The spelling of 67727047 in words is "sixty-seven million, seven hundred twenty-seven thousand, forty-seven".