67404243 has 8 divisors (see below), whose sum is σ = 89914000. Its totient is φ = 44915328.

The previous prime is 67404221. The next prime is 67404247. The reversal of 67404243 is 34240476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-67404243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67404243.

It is not an unprimeable number, because it can be changed into a prime (67404247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5463 + ... + 12831.

It is an arithmetic number, because the mean of its divisors is an integer number (11239250).

Almost surely, 2^67404243 is an apocalyptic number.

67404243 is a deficient number, since it is larger than the sum of its proper divisors (22509757).

67404243 is a wasteful number, since it uses less digits than its factorization.

67404243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10421.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 67404243 is about 8210.0087088870. The cubic root of 67404243 is about 406.9700147143.

The spelling of 67404243 in words is "sixty-seven million, four hundred four thousand, two hundred forty-three".