68668473 has 16 divisors (see below), whose sum is σ = 93171456. Its totient is φ = 44978640.

The previous prime is 68668429. The next prime is 68668513. The reversal of 68668473 is 37486686.

It is a happy number.

It is not a de Polignac number, because 68668473 - 2²⁶ = 1559609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68668403) 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, 51886 + ... + 53192.

It is an arithmetic number, because the mean of its divisors is an integer number (5823216).

Almost surely, 2^68668473 is an apocalyptic number.

It is an amenable number.

68668473 is a deficient number, since it is larger than the sum of its proper divisors (24502983).

68668473 is a wasteful number, since it uses less digits than its factorization.

68668473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604.

The product of its digits is 1161216, while the sum is 48.

The square root of 68668473 is about 8286.6442544615. The cubic root of 68668473 is about 409.4986396003.

The spelling of 68668473 in words is "sixty-eight million, six hundred sixty-eight thousand, four hundred seventy-three".