68088089 has 4 divisors (see below), whose sum is σ = 68146356. Its totient is φ = 68029824.

The previous prime is 68088067. The next prime is 68088091. The reversal of 68088089 is 98088086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98088086 = 2 ⋅49044043.

It can be written as a sum of positive squares in 2 ways, for example, as 44662489 + 23425600 = 6683^2 + 4840^2 .

It is a cyclic number.

It is not a de Polignac number, because 68088089 - 2¹⁶ = 68022553 is a prime.

68088089 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68088019) 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, 27344 + ... + 29729.

It is an arithmetic number, because the mean of its divisors is an integer number (17036589).

Almost surely, 2^68088089 is an apocalyptic number.

It is an amenable number.

68088089 is a deficient number, since it is larger than the sum of its proper divisors (58267).

68088089 is a wasteful number, since it uses less digits than its factorization.

68088089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58266.

The product of its (nonzero) digits is 221184, while the sum is 47.

The square root of 68088089 is about 8251.5507027467. The cubic root of 68088089 is about 408.3416836091.

The spelling of 68088089 in words is "sixty-eight million, eighty-eight thousand, eighty-nine".