67872845 has 16 divisors (see below), whose sum is σ = 86917440. Its totient is φ = 50730624.

The previous prime is 67872799. The next prime is 67872869. The reversal of 67872845 is 54827876.

It is a cyclic number.

It is not a de Polignac number, because 67872845 - 2¹⁰ = 67871821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67872845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2042 + ... + 11828.

It is an arithmetic number, because the mean of its divisors is an integer number (5432340).

Almost surely, 2^67872845 is an apocalyptic number.

It is an amenable number.

67872845 is a deficient number, since it is larger than the sum of its proper divisors (19044595).

67872845 is a wasteful number, since it uses less digits than its factorization.

67872845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9884.

The product of its digits is 752640, while the sum is 47.

The square root of 67872845 is about 8238.4977392726. The cubic root of 67872845 is about 407.9109382849.

The spelling of 67872845 in words is "sixty-seven million, eight hundred seventy-two thousand, eight hundred forty-five".