68263709 has 8 divisors (see below), whose sum is σ = 70709760. Its totient is φ = 65823856.

The previous prime is 68263703. The next prime is 68263711. The reversal of 68263709 is 90736286.

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 68263709 - 2²⁰ = 67215133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68263703) 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, 42332 + ... + 43914.

It is an arithmetic number, because the mean of its divisors is an integer number (8838720).

Almost surely, 2^68263709 is an apocalyptic number.

It is an amenable number.

68263709 is a deficient number, since it is larger than the sum of its proper divisors (2446051).

68263709 is a wasteful number, since it uses less digits than its factorization.

68263709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 68263709 is about 8262.1854856932. The cubic root of 68263709 is about 408.6924615458.

The spelling of 68263709 in words is "sixty-eight million, two hundred sixty-three thousand, seven hundred nine".