68182997 has 4 divisors (see below), whose sum is σ = 68466156. Its totient is φ = 67899840.

The previous prime is 68182969. The next prime is 68182999. The reversal of 68182997 is 79928186.

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 57365476 + 10817521 = 7574^2 + 3289^2 .

It is a cyclic number.

It is not a de Polignac number, because 68182997 - 2²⁰ = 67134421 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 (68182999) 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, 141218 + ... + 141699.

It is an arithmetic number, because the mean of its divisors is an integer number (17116539).

Almost surely, 2^68182997 is an apocalyptic number.

It is an amenable number.

68182997 is a deficient number, since it is larger than the sum of its proper divisors (283159).

68182997 is a wasteful number, since it uses less digits than its factorization.

68182997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283158.

The product of its digits is 435456, while the sum is 50.

The square root of 68182997 is about 8257.2996191249. The cubic root of 68182997 is about 408.5313247059.

The spelling of 68182997 in words is "sixty-eight million, one hundred eighty-two thousand, nine hundred ninety-seven".