68436873 has 16 divisors (see below), whose sum is σ = 103108800. Its totient is φ = 44850240.

The previous prime is 68436869. The next prime is 68436881. The reversal of 68436873 is 37863486.

It is not a de Polignac number, because 68436873 - 2² = 68436869 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68436853) 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, 19888 + ... + 23073.

It is an arithmetic number, because the mean of its divisors is an integer number (6444300).

Almost surely, 2^68436873 is an apocalyptic number.

It is an amenable number.

68436873 is a deficient number, since it is larger than the sum of its proper divisors (34671927).

68436873 is a wasteful number, since it uses less digits than its factorization.

68436873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43029 (or 43023 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 68436873 is about 8272.6581580529. The cubic root of 68436873 is about 409.0377453742.

The spelling of 68436873 in words is "sixty-eight million, four hundred thirty-six thousand, eight hundred seventy-three".