217000006 has 16 divisors (see below), whose sum is σ = 327847824. Its totient is φ = 107720704.

The previous prime is 217000001. The next prime is 217000013. The reversal of 217000006 is 600000712.

217000006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217000001) 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, 227226 + ... + 228178.

It is an arithmetic number, because the mean of its divisors is an integer number (20490489).

Almost surely, 2^217000006 is an apocalyptic number.

217000006 is a deficient number, since it is larger than the sum of its proper divisors (110847818).

217000006 is a wasteful number, since it uses less digits than its factorization.

217000006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 217000006 is about 14730.9200663095. The cubic root of 217000006 is about 600.9245062302.

Adding to 217000006 its reverse (600000712), we get a palindrome (817000718).

The spelling of 217000006 in words is "two hundred seventeen million, six", and thus it is an aban number.