68933533 has 2 divisors, whose sum is σ = 68933534. Its totient is φ = 68933532.

The previous prime is 68933497. The next prime is 68933561. The reversal of 68933533 is 33533986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68856804 + 76729 = 8298^2 + 277^2 .

It is a cyclic number.

It is not a de Polignac number, because 68933533 - 2⁹ = 68933021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68933563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34466766 + 34466767.

It is an arithmetic number, because the mean of its divisors is an integer number (34466767).

Almost surely, 2^68933533 is an apocalyptic number.

It is an amenable number.

68933533 is a deficient number, since it is larger than the sum of its proper divisors (1).

68933533 is an equidigital number, since it uses as much as digits as its factorization.

68933533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 40.

The square root of 68933533 is about 8302.6220557123. The cubic root of 68933533 is about 410.0248507642.

The spelling of 68933533 in words is "sixty-eight million, nine hundred thirty-three thousand, five hundred thirty-three".