67399216 has 20 divisors (see below), whose sum is σ = 131254992. Its totient is φ = 33526976.

The previous prime is 67399147. The next prime is 67399217. The reversal of 67399216 is 61299376.

It is not an unprimeable number, because it can be changed into a prime (67399217) 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, 7540 + ... + 13843.

Almost surely, 2^67399216 is an apocalyptic number.

It is an amenable number.

67399216 is a deficient number, since it is larger than the sum of its proper divisors (63855776).

67399216 is a wasteful number, since it uses less digits than its factorization.

67399216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21588 (or 21582 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The square root of 67399216 is about 8209.7025524680. The cubic root of 67399216 is about 406.9598972052.

The spelling of 67399216 in words is "sixty-seven million, three hundred ninety-nine thousand, two hundred sixteen".