68244089 has 4 divisors (see below), whose sum is σ = 68422656. Its totient is φ = 68065524.

The previous prime is 68244079. The next prime is 68244119. The reversal of 68244089 is 98044286.

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 a de Polignac number, because none of the positive numbers 2^k-68244089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68244079) 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, 88709 + ... + 89474.

It is an arithmetic number, because the mean of its divisors is an integer number (17105664).

Almost surely, 2^68244089 is an apocalyptic number.

It is an amenable number.

68244089 is a deficient number, since it is larger than the sum of its proper divisors (178567).

68244089 is a wasteful number, since it uses less digits than its factorization.

68244089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178566.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 68244089 is about 8260.9980631882. The cubic root of 68244089 is about 408.6533030405.

The spelling of 68244089 in words is "sixty-eight million, two hundred forty-four thousand, eighty-nine".