68038533 has 6 divisors (see below), whose sum is σ = 98277894. Its totient is φ = 45359016.

The previous prime is 68038507. The next prime is 68038541. The reversal of 68038533 is 33583086.

It can be written as a sum of positive squares in only one way, i.e., 67864644 + 173889 = 8238^2 + 417^2 .

It is not a de Polignac number, because 68038533 - 2⁵ = 68038501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68030533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3779910 + ... + 3779927.

It is an arithmetic number, because the mean of its divisors is an integer number (16379649).

Almost surely, 2^68038533 is an apocalyptic number.

It is an amenable number.

68038533 is a deficient number, since it is larger than the sum of its proper divisors (30239361).

68038533 is a wasteful number, since it uses less digits than its factorization.

68038533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559843 (or 7559840 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 68038533 is about 8248.5473266509. The cubic root of 68038533 is about 408.2425928964.

The spelling of 68038533 in words is "sixty-eight million, thirty-eight thousand, five hundred thirty-three".