217468 has 6 divisors (see below), whose sum is σ = 380576. Its totient is φ = 108732.

The previous prime is 217463. The next prime is 217489. The reversal of 217468 is 864712.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27180 + ... + 27187.

2²¹⁷⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

217468 is a deficient number, since it is larger than the sum of its proper divisors (163108).

217468 is a wasteful number, since it uses less digits than its factorization.

217468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54371 (or 54369 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 217468 is about 466.3346437913. The cubic root of 217468 is about 60.1356191524.

The spelling of 217468 in words is "two hundred seventeen thousand, four hundred sixty-eight".