67027745 has 4 divisors (see below), whose sum is σ = 80433300. Its totient is φ = 53622192.

The previous prime is 67027721. The next prime is 67027747. The reversal of 67027745 is 54772076.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34492129 + 32535616 = 5873^2 + 5704^2 .

It is a cyclic number.

It is not a de Polignac number, because 67027745 - 2¹⁶ = 66962209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67027699 and 67027708.

It is not an unprimeable number, because it can be changed into a prime (67027747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6702770 + ... + 6702779.

It is an arithmetic number, because the mean of its divisors is an integer number (20108325).

Almost surely, 2^67027745 is an apocalyptic number.

It is an amenable number.

67027745 is a deficient number, since it is larger than the sum of its proper divisors (13405555).

67027745 is a wasteful number, since it uses less digits than its factorization.

67027745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13405554.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 67027745 is about 8187.0473920700. The cubic root of 67027745 is about 406.2108658161.

The spelling of 67027745 in words is "sixty-seven million, twenty-seven thousand, seven hundred forty-five".