67224393 has 12 divisors (see below), whose sum is σ = 97812468. Its totient is φ = 44488320.

The previous prime is 67224319. The next prime is 67224397. The reversal of 67224393 is 39342276.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33212169 + 34012224 = 5763^2 + 5832^2 .

It is not a de Polignac number, because 67224393 - 2¹² = 67220297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67224397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26028 + ... + 28493.

It is an arithmetic number, because the mean of its divisors is an integer number (8151039).

Almost surely, 2^67224393 is an apocalyptic number.

It is an amenable number.

67224393 is a deficient number, since it is larger than the sum of its proper divisors (30588075).

67224393 is a wasteful number, since it uses less digits than its factorization.

67224393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54664 (or 54661 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 67224393 is about 8199.0482984307. The cubic root of 67224393 is about 406.6077291487.

The spelling of 67224393 in words is "sixty-seven million, two hundred twenty-four thousand, three hundred ninety-three".