68414009 has 2 divisors, whose sum is σ = 68414010. Its totient is φ = 68414008.

The previous prime is 68413997. The next prime is 68414039. The reversal of 68414009 is 90041486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67699984 + 714025 = 8228^2 + 845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68414009 is a prime.

It is not a weakly prime, because it can be changed into another prime (68414039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34207004 + 34207005.

It is an arithmetic number, because the mean of its divisors is an integer number (34207005).

Almost surely, 2^68414009 is an apocalyptic number.

It is an amenable number.

68414009 is a deficient number, since it is larger than the sum of its proper divisors (1).

68414009 is an equidigital number, since it uses as much as digits as its factorization.

68414009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 68414009 is about 8271.2761409591. The cubic root of 68414009 is about 408.9921886429.

The spelling of 68414009 in words is "sixty-eight million, four hundred fourteen thousand, nine".