67342321 has 16 divisors (see below), whose sum is σ = 76982400. Its totient is φ = 58524928.

The previous prime is 67342307. The next prime is 67342337. The reversal of 67342321 is 12324376.

It is a cyclic number.

It is not a de Polignac number, because 67342321 - 2⁷ = 67342193 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 67342321.

It is not an unprimeable number, because it can be changed into a prime (67342351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8370 + ... + 14308.

It is an arithmetic number, because the mean of its divisors is an integer number (4811400).

Almost surely, 2^67342321 is an apocalyptic number.

It is an amenable number.

67342321 is a deficient number, since it is larger than the sum of its proper divisors (9640079).

67342321 is a wasteful number, since it uses less digits than its factorization.

67342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008.

The product of its digits is 6048, while the sum is 28.

The square root of 67342321 is about 8206.2367136221. The cubic root of 67342321 is about 406.8453533330.

Adding to 67342321 its reverse (12324376), we get a palindrome (79666697).

The spelling of 67342321 in words is "sixty-seven million, three hundred forty-two thousand, three hundred twenty-one".