68182973 has 4 divisors (see below), whose sum is σ = 70534140. Its totient is φ = 65831808.

The previous prime is 68182969. The next prime is 68182999. The reversal of 68182973 is 37928186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37928186 = 2 ⋅18964093.

It can be written as a sum of positive squares in 2 ways, for example, as 53027524 + 15155449 = 7282^2 + 3893^2 .

It is a cyclic number.

It is not a de Polignac number, because 68182973 - 2² = 68182969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68182913) 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, 1175540 + ... + 1175597.

It is an arithmetic number, because the mean of its divisors is an integer number (17633535).

Almost surely, 2^68182973 is an apocalyptic number.

It is an amenable number.

68182973 is a deficient number, since it is larger than the sum of its proper divisors (2351167).

68182973 is a wasteful number, since it uses less digits than its factorization.

68182973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351166.

The product of its digits is 145152, while the sum is 44.

The square root of 68182973 is about 8257.2981658652. The cubic root of 68182973 is about 408.5312767724.

The spelling of 68182973 in words is "sixty-eight million, one hundred eighty-two thousand, nine hundred seventy-three".