68657229 has 6 divisors (see below), whose sum is σ = 99171566. Its totient is φ = 45771480.

The previous prime is 68657227. The next prime is 68657249. The reversal of 68657229 is 92275686.

It can be written as a sum of positive squares in only one way, i.e., 50381604 + 18275625 = 7098^2 + 4275^2 .

It is not a de Polignac number, because 68657229 - 2¹ = 68657227 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 (68657221) 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 5 ways as a sum of consecutive naturals, for example, 3814282 + ... + 3814299.

Almost surely, 2^68657229 is an apocalyptic number.

It is an amenable number.

68657229 is a deficient number, since it is larger than the sum of its proper divisors (30514337).

68657229 is a wasteful number, since it uses less digits than its factorization.

68657229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628587 (or 7628584 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 68657229 is about 8285.9657855919. The cubic root of 68657229 is about 409.4762874988.

It can be divided in two parts, 68657 and 229, that added together give a palindrome (68886).

The spelling of 68657229 in words is "sixty-eight million, six hundred fifty-seven thousand, two hundred twenty-nine".