68570213 has 16 divisors (see below), whose sum is σ = 72558720. Its totient is φ = 64728000.

The previous prime is 68570191. The next prime is 68570219. The reversal of 68570213 is 31207586.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68570213 - 2⁸ = 68569957 is a prime.

It is a super-2 number, since 2×68570213² = 9403748221730738, which contains 22 as substring.

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 68570213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68570219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220328 + ... + 220638.

It is an arithmetic number, because the mean of its divisors is an integer number (4534920).

Almost surely, 2^68570213 is an apocalyptic number.

It is an amenable number.

68570213 is a deficient number, since it is larger than the sum of its proper divisors (3988507).

68570213 is a wasteful number, since it uses less digits than its factorization.

68570213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 68570213 is about 8280.7133146849. The cubic root of 68570213 is about 409.3032246248.

Adding to 68570213 its reverse (31207586), we get a palindrome (99777799).

The spelling of 68570213 in words is "sixty-eight million, five hundred seventy thousand, two hundred thirteen".