68146873 has 4 divisors (see below), whose sum is σ = 69731728. Its totient is φ = 66562020.

The previous prime is 68146867. The next prime is 68146889. The reversal of 68146873 is 37864186.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37864186 = 2 ⋅18932093.

It is a cyclic number.

It is not a de Polignac number, because 68146873 - 2⁹ = 68146361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1584811 = 68146873 / (6 + 8 + 1 + 4 + 6 + 8 + 7 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68146843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792363 + ... + 792448.

It is an arithmetic number, because the mean of its divisors is an integer number (17432932).

Almost surely, 2^68146873 is an apocalyptic number.

It is an amenable number.

68146873 is a deficient number, since it is larger than the sum of its proper divisors (1584855).

68146873 is a wasteful number, since it uses less digits than its factorization.

68146873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584854.

The product of its digits is 193536, while the sum is 43.

The square root of 68146873 is about 8255.1119314035. Note that the first 3 decimals coincide. The cubic root of 68146873 is about 408.4591640341.

The spelling of 68146873 in words is "sixty-eight million, one hundred forty-six thousand, eight hundred seventy-three".