68217210 has 48 divisors (see below), whose sum is σ = 181149696. Its totient is φ = 17803104.

The previous prime is 68217199. The next prime is 68217217. The reversal of 68217210 is 1271286.

It is not an unprimeable number, because it can be changed into a prime (68217217) 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, 3834 + ... + 12293.

It is an arithmetic number, because the mean of its divisors is an integer number (3773952).

Almost surely, 2^68217210 is an apocalyptic number.

68217210 is an abundant number, since it is smaller than the sum of its proper divisors (112932486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68217210 is a wasteful number, since it uses less digits than its factorization.

68217210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16187 (or 16184 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 68217210 is about 8259.3710414292. The cubic root of 68217210 is about 408.5996445005.

Adding to 68217210 its reverse (1271286), we get a palindrome (69488496).

The spelling of 68217210 in words is "sixty-eight million, two hundred seventeen thousand, two hundred ten".