68740319 has 2 divisors, whose sum is σ = 68740320. Its totient is φ = 68740318.

The previous prime is 68740303. The next prime is 68740337. The reversal of 68740319 is 91304786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68740319 - 2⁴ = 68740303 is a prime.

It is a super-2 number, since 2×68740319² = 9450462912443522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68740519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34370159 + 34370160.

It is an arithmetic number, because the mean of its divisors is an integer number (34370160).

Almost surely, 2^68740319 is an apocalyptic number.

68740319 is a deficient number, since it is larger than the sum of its proper divisors (1).

68740319 is an equidigital number, since it uses as much as digits as its factorization.

68740319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 68740319 is about 8290.9781690703. The cubic root of 68740319 is about 409.6414056723.

The spelling of 68740319 in words is "sixty-eight million, seven hundred forty thousand, three hundred nineteen".