68313967 has 4 divisors (see below), whose sum is σ = 68772600. Its totient is φ = 67855336.

The previous prime is 68313923. The next prime is 68313989. The reversal of 68313967 is 76931386.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68313967 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 (68317967) 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 3 ways as a sum of consecutive naturals, for example, 229093 + ... + 229390.

It is an arithmetic number, because the mean of its divisors is an integer number (17193150).

Almost surely, 2^68313967 is an apocalyptic number.

68313967 is a deficient number, since it is larger than the sum of its proper divisors (458633).

68313967 is a wasteful number, since it uses less digits than its factorization.

68313967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458632.

The product of its digits is 163296, while the sum is 43.

The square root of 68313967 is about 8265.2263731854. The cubic root of 68313967 is about 408.7927345769.

The spelling of 68313967 in words is "sixty-eight million, three hundred thirteen thousand, nine hundred sixty-seven".