68934505 has 16 divisors (see below), whose sum is σ = 84566160. Its totient is φ = 53932032.

The previous prime is 68934469. The next prime is 68934517. The reversal of 68934505 is 50543986.

It can be written as a sum of positive squares in 8 ways, for example, as 11614464 + 57320041 = 3408^2 + 7571^2 .

It is a cyclic number.

It is not a de Polignac number, because 68934505 - 2⁷ = 68934377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42367 + ... + 43963.

It is an arithmetic number, because the mean of its divisors is an integer number (5285385).

Almost surely, 2^68934505 is an apocalyptic number.

It is an amenable number.

68934505 is a deficient number, since it is larger than the sum of its proper divisors (15631655).

68934505 is a wasteful number, since it uses less digits than its factorization.

68934505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 68934505 is about 8302.6805912308. The cubic root of 68934505 is about 410.0267779457.

The spelling of 68934505 in words is "sixty-eight million, nine hundred thirty-four thousand, five hundred five".