68689473 has 16 divisors (see below), whose sum is σ = 95020800. Its totient is φ = 44104320.

The previous prime is 68689463. The next prime is 68689493. The reversal of 68689473 is 37498686.

It is not a de Polignac number, because 68689473 - 2⁵ = 68689441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68689403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6183 + ... + 13251.

It is an arithmetic number, because the mean of its divisors is an integer number (5938800).

Almost surely, 2^68689473 is an apocalyptic number.

It is an amenable number.

68689473 is a deficient number, since it is larger than the sum of its proper divisors (26331327).

68689473 is a wasteful number, since it uses less digits than its factorization.

68689473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7192.

The product of its digits is 1741824, while the sum is 51.

The square root of 68689473 is about 8287.9112567643. The cubic root of 68689473 is about 409.5403792546.

The spelling of 68689473 in words is "sixty-eight million, six hundred eighty-nine thousand, four hundred seventy-three".