68817359 has 4 divisors (see below), whose sum is σ = 74111016. Its totient is φ = 63523704.

The previous prime is 68817349. The next prime is 68817361. The reversal of 68817359 is 95371886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68817359 - 2⁸ = 68817103 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 (68817349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2646809 + ... + 2646834.

It is an arithmetic number, because the mean of its divisors is an integer number (18527754).

Almost surely, 2^68817359 is an apocalyptic number.

68817359 is a deficient number, since it is larger than the sum of its proper divisors (5293657).

68817359 is a wasteful number, since it uses less digits than its factorization.

68817359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293656.

The product of its digits is 362880, while the sum is 47.

The square root of 68817359 is about 8295.6228819782. The cubic root of 68817359 is about 409.7943823240.

The spelling of 68817359 in words is "sixty-eight million, eight hundred seventeen thousand, three hundred fifty-nine".