68219173 has 8 divisors (see below), whose sum is σ = 77656896. Its totient is φ = 59320800.

The previous prime is 68219171. The next prime is 68219183. The reversal of 68219173 is 37191286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68219173 - 2¹ = 68219171 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 (68219171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134568 + ... + 135073.

It is an arithmetic number, because the mean of its divisors is an integer number (9707112).

Almost surely, 2^68219173 is an apocalyptic number.

It is an amenable number.

68219173 is a deficient number, since it is larger than the sum of its proper divisors (9437723).

68219173 is a wasteful number, since it uses less digits than its factorization.

68219173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269675.

The product of its digits is 18144, while the sum is 37.

The square root of 68219173 is about 8259.4898752889. The cubic root of 68219173 is about 408.6035637139.

The spelling of 68219173 in words is "sixty-eight million, two hundred nineteen thousand, one hundred seventy-three".