68428089 has 6 divisors (see below), whose sum is σ = 98840586. Its totient is φ = 45618720.

The previous prime is 68428039. The next prime is 68428097. The reversal of 68428089 is 98082486.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49112064 + 19316025 = 7008^2 + 4395^2 .

It is not a de Polignac number, because 68428089 - 2⁸ = 68427833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68428039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3801552 + ... + 3801569.

It is an arithmetic number, because the mean of its divisors is an integer number (16473431).

Almost surely, 2^68428089 is an apocalyptic number.

It is an amenable number.

68428089 is a deficient number, since it is larger than the sum of its proper divisors (30412497).

68428089 is a wasteful number, since it uses less digits than its factorization.

68428089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7603127 (or 7603124 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 68428089 is about 8272.1272354818. The cubic root of 68428089 is about 409.0202443735.

The spelling of 68428089 in words is "sixty-eight million, four hundred twenty-eight thousand, eighty-nine".