68396173 has 4 divisors (see below), whose sum is σ = 68423868. Its totient is φ = 68368480.

The previous prime is 68396171. The next prime is 68396177. The reversal of 68396173 is 37169386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35010889 + 33385284 = 5917^2 + 5778^2 .

It is a cyclic number.

It is not a de Polignac number, because 68396173 - 2¹ = 68396171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68396171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9736 + ... + 15217.

It is an arithmetic number, because the mean of its divisors is an integer number (17105967).

Almost surely, 2^68396173 is an apocalyptic number.

It is an amenable number.

68396173 is a deficient number, since it is larger than the sum of its proper divisors (27695).

68396173 is a wasteful number, since it uses less digits than its factorization.

68396173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27694.

The product of its digits is 163296, while the sum is 43.

The square root of 68396173 is about 8270.1978815504. The cubic root of 68396173 is about 408.9566432003.

The spelling of 68396173 in words is "sixty-eight million, three hundred ninety-six thousand, one hundred seventy-three".