68838331 has 2 divisors, whose sum is σ = 68838332. Its totient is φ = 68838330.

The previous prime is 68838293. The next prime is 68838337. The reversal of 68838331 is 13383886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68838331 - 2⁹ = 68837819 is a prime.

It is a super-3 number, since 3×68838331³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (68838337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34419165 + 34419166.

It is an arithmetic number, because the mean of its divisors is an integer number (34419166).

Almost surely, 2^68838331 is an apocalyptic number.

68838331 is a deficient number, since it is larger than the sum of its proper divisors (1).

68838331 is an equidigital number, since it uses as much as digits as its factorization.

68838331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 68838331 is about 8296.8868257919. The cubic root of 68838331 is about 409.8360061964.

It can be divided in two parts, 68838 and 331, that added together give a square (69169 = 263²).

The spelling of 68838331 in words is "sixty-eight million, eight hundred thirty-eight thousand, three hundred thirty-one".