68834013 has 16 divisors (see below), whose sum is σ = 94898496. Its totient is φ = 44352000.

The previous prime is 68833997. The next prime is 68834027. The reversal of 68834013 is 31043886.

It is not a de Polignac number, because 68834013 - 2⁴ = 68833997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68834033) 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 15 ways as a sum of consecutive naturals, for example, 9763 + ... + 15263.

It is an arithmetic number, because the mean of its divisors is an integer number (5931156).

Almost surely, 2^68834013 is an apocalyptic number.

It is an amenable number.

68834013 is a deficient number, since it is larger than the sum of its proper divisors (26064483).

68834013 is a wasteful number, since it uses less digits than its factorization.

68834013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68834013 is about 8296.6266036263. The cubic root of 68834013 is about 409.8274367998.

Adding to 68834013 its reverse (31043886), we get a palindrome (99877899).

The spelling of 68834013 in words is "sixty-eight million, eight hundred thirty-four thousand, thirteen".