67445 has 16 divisors (see below), whose sum is σ = 96768. Its totient is φ = 44160.

The previous prime is 67433. The next prime is 67447. The reversal of 67445 is 54476.

It is not a de Polignac number, because 67445 - 2⁴ = 67429 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 67445.

It is not an unprimeable number, because it can be changed into a prime (67447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1412 + ... + 1458.

It is an arithmetic number, because the mean of its divisors is an integer number (6048).

2⁶⁷⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

67445 is a deficient number, since it is larger than the sum of its proper divisors (29323).

67445 is a wasteful number, since it uses less digits than its factorization.

67445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100.

The product of its digits is 3360, while the sum is 26.

The square root of 67445 is about 259.7017520157. The cubic root of 67445 is about 40.7052025055.

It can be divided in two parts, 67 and 445, that added together give a 9-th power (512 = 2⁹).

The spelling of 67445 in words is "sixty-seven thousand, four hundred forty-five".