68028865 has 8 divisors (see below), whose sum is σ = 82136448. Its totient is φ = 54088560.

The previous prime is 68028827. The next prime is 68028869. The reversal of 68028865 is 56882086.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68028865 - 2¹⁷ = 67897793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68028869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40921 + ... + 42550.

It is an arithmetic number, because the mean of its divisors is an integer number (10267056).

Almost surely, 2^68028865 is an apocalyptic number.

It is an amenable number.

68028865 is a deficient number, since it is larger than the sum of its proper divisors (14107583).

68028865 is a wasteful number, since it uses less digits than its factorization.

68028865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83639.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 68028865 is about 8247.9612632456. The cubic root of 68028865 is about 408.2232554407.

The spelling of 68028865 in words is "sixty-eight million, twenty-eight thousand, eight hundred sixty-five".