68343387 has 24 divisors (see below), whose sum is σ = 107117136. Its totient is φ = 38642688.

The previous prime is 68343371. The next prime is 68343389. The reversal of 68343387 is 78334386.

It is not a de Polignac number, because 68343387 - 2⁴ = 68343371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68343389) 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 23 ways as a sum of consecutive naturals, for example, 11863 + ... + 16655.

It is an arithmetic number, because the mean of its divisors is an integer number (4463214).

Almost surely, 2^68343387 is an apocalyptic number.

68343387 is a deficient number, since it is larger than the sum of its proper divisors (38773749).

68343387 is a wasteful number, since it uses less digits than its factorization.

68343387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907 (or 4900 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 68343387 is about 8267.0059271782. The cubic root of 68343387 is about 408.8514095289.

Subtracting 68343387 from its reverse (78334386), we obtain a palindrome (9990999).

The spelling of 68343387 in words is "sixty-eight million, three hundred forty-three thousand, three hundred eighty-seven".