68744617 has 8 divisors (see below), whose sum is σ = 74023200. Its totient is φ = 63603264.

The previous prime is 68744593. The next prime is 68744623. The reversal of 68744617 is 71644786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68744617 - 2¹⁹ = 68220329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68744647) 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 in 7 ways as a sum of consecutive naturals, for example, 33267 + ... + 35272.

It is an arithmetic number, because the mean of its divisors is an integer number (9252900).

Almost surely, 2^68744617 is an apocalyptic number.

It is an amenable number.

68744617 is a deficient number, since it is larger than the sum of its proper divisors (5278583).

68744617 is a wasteful number, since it uses less digits than its factorization.

68744617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68615.

The product of its digits is 225792, while the sum is 43.

The square root of 68744617 is about 8291.2373624206. The cubic root of 68744617 is about 409.6499431270.

The spelling of 68744617 in words is "sixty-eight million, seven hundred forty-four thousand, six hundred seventeen".