68644229 has 2 divisors, whose sum is σ = 68644230. Its totient is φ = 68644228.

The previous prime is 68644217. The next prime is 68644241. The reversal of 68644229 is 92244686.

It is a balanced prime because it is at equal distance from previous prime (68644217) and next prime (68644241).

It can be written as a sum of positive squares in only one way, i.e., 42276004 + 26368225 = 6502^2 + 5135^2 .

It is a cyclic number.

It is not a de Polignac number, because 68644229 - 2¹² = 68640133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68644129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34322114 + 34322115.

It is an arithmetic number, because the mean of its divisors is an integer number (34322115).

Almost surely, 2^68644229 is an apocalyptic number.

It is an amenable number.

68644229 is a deficient number, since it is larger than the sum of its proper divisors (1).

68644229 is an equidigital number, since it uses as much as digits as its factorization.

68644229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 41.

The square root of 68644229 is about 8285.1812895072. The cubic root of 68644229 is about 409.4504415788.

The spelling of 68644229 in words is "sixty-eight million, six hundred forty-four thousand, two hundred twenty-nine".