67041005 has 4 divisors (see below), whose sum is σ = 80449212. Its totient is φ = 53632800.

The previous prime is 67041001. The next prime is 67041017. The reversal of 67041005 is 50014076.

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 49308484 + 17732521 = 7022^2 + 4211^2 .

It is not a de Polignac number, because 67041005 - 2² = 67041001 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 (67041001) 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, 6704096 + ... + 6704105.

It is an arithmetic number, because the mean of its divisors is an integer number (20112303).

Almost surely, 2^67041005 is an apocalyptic number.

It is an amenable number.

67041005 is a deficient number, since it is larger than the sum of its proper divisors (13408207).

67041005 is a wasteful number, since it uses less digits than its factorization.

67041005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13408206.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 67041005 is about 8187.8571677821. The cubic root of 67041005 is about 406.2376507489.

The spelling of 67041005 in words is "sixty-seven million, forty-one thousand, five".