68933213 has 2 divisors, whose sum is σ = 68933214. Its totient is φ = 68933212.

The previous prime is 68933201. The next prime is 68933239. The reversal of 68933213 is 31233986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 24870169 = 6638^2 + 4987^2 .

It is a cyclic number.

It is not a de Polignac number, because 68933213 - 2⁶ = 68933149 is a prime.

It is equal to p_4058963 and since 68933213 and 4058963 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68933713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34466606 + 34466607.

It is an arithmetic number, because the mean of its divisors is an integer number (34466607).

Almost surely, 2^68933213 is an apocalyptic number.

It is an amenable number.

68933213 is a deficient number, since it is larger than the sum of its proper divisors (1).

68933213 is an equidigital number, since it uses as much as digits as its factorization.

68933213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 68933213 is about 8302.6027846694. The cubic root of 68933213 is about 410.0242162972.

The spelling of 68933213 in words is "sixty-eight million, nine hundred thirty-three thousand, two hundred thirteen".