67994217 has 24 divisors (see below), whose sum is σ = 104045760. Its totient is φ = 42668640.

The previous prime is 67994209. The next prime is 67994219. The reversal of 67994217 is 71249976.

It is not a de Polignac number, because 67994217 - 2³ = 67994209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67994219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27367 + ... + 29747.

It is an arithmetic number, because the mean of its divisors is an integer number (4335240).

Almost surely, 2^67994217 is an apocalyptic number.

It is an amenable number.

67994217 is a deficient number, since it is larger than the sum of its proper divisors (36051543).

67994217 is a wasteful number, since it uses less digits than its factorization.

67994217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573 (or 2570 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 67994217 is about 8245.8605979000. The cubic root of 67994217 is about 408.1539391718.

The spelling of 67994217 in words is "sixty-seven million, nine hundred ninety-four thousand, two hundred seventeen".