68635307 has 8 divisors (see below), whose sum is σ = 78263136. Its totient is φ = 59628672.

The previous prime is 68635291. The next prime is 68635313. The reversal of 68635307 is 70353686.

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 68635307 - 2⁴ = 68635291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68635327) 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, 155063 + ... + 155504.

It is an arithmetic number, because the mean of its divisors is an integer number (9782892).

Almost surely, 2^68635307 is an apocalyptic number.

68635307 is a deficient number, since it is larger than the sum of its proper divisors (9627829).

68635307 is a wasteful number, since it uses less digits than its factorization.

68635307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310597.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 68635307 is about 8284.6428408230. The cubic root of 68635307 is about 409.4327014367.

The spelling of 68635307 in words is "sixty-eight million, six hundred thirty-five thousand, three hundred seven".