68884213 has 2 divisors, whose sum is σ = 68884214. Its totient is φ = 68884212.

The previous prime is 68884183. The next prime is 68884217. The reversal of 68884213 is 31248886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46539684 + 22344529 = 6822^2 + 4727^2 .

It is a cyclic number.

It is not a de Polignac number, because 68884213 - 2²⁵ = 35329781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68884217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34442106 + 34442107.

It is an arithmetic number, because the mean of its divisors is an integer number (34442107).

Almost surely, 2^68884213 is an apocalyptic number.

It is an amenable number.

68884213 is a deficient number, since it is larger than the sum of its proper divisors (1).

68884213 is an equidigital number, since it uses as much as digits as its factorization.

68884213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 40.

The square root of 68884213 is about 8299.6513782207. The cubic root of 68884213 is about 409.9270403588.

The spelling of 68884213 in words is "sixty-eight million, eight hundred eighty-four thousand, two hundred thirteen".