68314905 has 12 divisors (see below), whose sum is σ = 118412580. Its totient is φ = 36434592.

The previous prime is 68314903. The next prime is 68314907. The reversal of 68314905 is 50941386.

It is an interprime number because it is at equal distance from previous prime (68314903) and next prime (68314907).

It can be written as a sum of positive squares in 2 ways, for example, as 30603024 + 37711881 = 5532^2 + 6141^2 .

It is not a de Polignac number, because 68314905 - 2¹ = 68314903 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68314905.

It is not an unprimeable number, because it can be changed into a prime (68314903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 759010 + ... + 759099.

It is an arithmetic number, because the mean of its divisors is an integer number (9867715).

Almost surely, 2^68314905 is an apocalyptic number.

It is an amenable number.

68314905 is a deficient number, since it is larger than the sum of its proper divisors (50097675).

68314905 is a wasteful number, since it uses less digits than its factorization.

68314905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518120 (or 1518117 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 68314905 is about 8265.2831167480. The cubic root of 68314905 is about 408.7946055746.

The spelling of 68314905 in words is "sixty-eight million, three hundred fourteen thousand, nine hundred five".