68529217 has 8 divisors (see below), whose sum is σ = 70558400. Its totient is φ = 66509424.

The previous prime is 68529211. The next prime is 68529221. The reversal of 68529217 is 71292586.

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

It is not a de Polignac number, because 68529217 - 2¹¹ = 68527169 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 68529217.

It is not an unprimeable number, because it can be changed into a prime (68529211) 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, 14134 + ... + 18352.

It is an arithmetic number, because the mean of its divisors is an integer number (8819800).

Almost surely, 2^68529217 is an apocalyptic number.

It is an amenable number.

68529217 is a deficient number, since it is larger than the sum of its proper divisors (2029183).

68529217 is a wasteful number, since it uses less digits than its factorization.

68529217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695.

The product of its digits is 60480, while the sum is 40.

The square root of 68529217 is about 8278.2375539725. The cubic root of 68529217 is about 409.2216384695.

The spelling of 68529217 in words is "sixty-eight million, five hundred twenty-nine thousand, two hundred seventeen".