68873185 has 4 divisors (see below), whose sum is σ = 82647828. Its totient is φ = 55098544.

The previous prime is 68873183. The next prime is 68873251. The reversal of 68873185 is 58137886.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58137886 = 2 ⋅29068943.

It can be written as a sum of positive squares in 2 ways, for example, as 53056656 + 15816529 = 7284^2 + 3977^2 .

It is a cyclic number.

It is not a de Polignac number, because 68873185 - 2¹ = 68873183 is a prime.

It is a super-2 number, since 2×68873185² = 9487031224088450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68873183) 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, 6887314 + ... + 6887323.

It is an arithmetic number, because the mean of its divisors is an integer number (20661957).

Almost surely, 2^68873185 is an apocalyptic number.

It is an amenable number.

68873185 is a deficient number, since it is larger than the sum of its proper divisors (13774643).

68873185 is a wasteful number, since it uses less digits than its factorization.

68873185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13774642.

The product of its digits is 322560, while the sum is 46.

The square root of 68873185 is about 8298.9869863737. The cubic root of 68873185 is about 409.9051634707.

The spelling of 68873185 in words is "sixty-eight million, eight hundred seventy-three thousand, one hundred eighty-five".