68407673 has 2 divisors, whose sum is σ = 68407674. Its totient is φ = 68407672.

The previous prime is 68407667. The next prime is 68407693. The reversal of 68407673 is 37670486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67848169 + 559504 = 8237^2 + 748^2 .

It is a cyclic number.

It is not a de Polignac number, because 68407673 - 2²⁶ = 1298809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68407673.

It is not a weakly prime, because it can be changed into another prime (68407693) 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, 34203836 + 34203837.

It is an arithmetic number, because the mean of its divisors is an integer number (34203837).

Almost surely, 2^68407673 is an apocalyptic number.

It is an amenable number.

68407673 is a deficient number, since it is larger than the sum of its proper divisors (1).

68407673 is an equidigital number, since it uses as much as digits as its factorization.

68407673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 68407673 is about 8270.8931198511. The cubic root of 68407673 is about 408.9795623083.

The spelling of 68407673 in words is "sixty-eight million, four hundred seven thousand, six hundred seventy-three".