68845229 has 4 divisors (see below), whose sum is σ = 69154176. Its totient is φ = 68536284.

The previous prime is 68845219. The next prime is 68845243. The reversal of 68845229 is 92254886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68845229 - 2⁴ = 68845213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68845229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68845219) 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, 154139 + ... + 154584.

It is an arithmetic number, because the mean of its divisors is an integer number (17288544).

Almost surely, 2^68845229 is an apocalyptic number.

It is an amenable number.

68845229 is a deficient number, since it is larger than the sum of its proper divisors (308947).

68845229 is a wasteful number, since it uses less digits than its factorization.

68845229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308946.

The product of its digits is 276480, while the sum is 44.

The square root of 68845229 is about 8297.3025134679. The cubic root of 68845229 is about 409.8496950540.

The spelling of 68845229 in words is "sixty-eight million, eight hundred forty-five thousand, two hundred twenty-nine".