68327491 has 2 divisors, whose sum is σ = 68327492. Its totient is φ = 68327490.

The previous prime is 68327459. The next prime is 68327507. The reversal of 68327491 is 19472386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68327491 - 2⁵ = 68327459 is a prime.

It is not a weakly prime, because it can be changed into another prime (68327431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34163745 + 34163746.

It is an arithmetic number, because the mean of its divisors is an integer number (34163746).

Almost surely, 2^68327491 is an apocalyptic number.

68327491 is a deficient number, since it is larger than the sum of its proper divisors (1).

68327491 is an equidigital number, since it uses as much as digits as its factorization.

68327491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 68327491 is about 8266.0444591110. The cubic root of 68327491 is about 408.8197087980.

The spelling of 68327491 in words is "sixty-eight million, three hundred twenty-seven thousand, four hundred ninety-one".