67890217 has 8 divisors (see below), whose sum is σ = 70490880. Its totient is φ = 65315280.

The previous prime is 67890161. The next prime is 67890223. The reversal of 67890217 is 71209876.

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

It is a cyclic number.

It is not a de Polignac number, because 67890217 - 2¹⁹ = 67365929 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 67890217.

It is not an unprimeable number, because it can be changed into a prime (67890617) 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, 967 + ... + 11692.

It is an arithmetic number, because the mean of its divisors is an integer number (8811360).

Almost surely, 2^67890217 is an apocalyptic number.

It is an amenable number.

67890217 is a deficient number, since it is larger than the sum of its proper divisors (2600663).

67890217 is a wasteful number, since it uses less digits than its factorization.

67890217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12863.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 67890217 is about 8239.5519902480. The cubic root of 67890217 is about 407.9457368082.

The spelling of 67890217 in words is "sixty-seven million, eight hundred ninety thousand, two hundred seventeen".