65088889 has 4 divisors (see below), whose sum is σ = 68514640. Its totient is φ = 61663140.

The previous prime is 65088857. The next prime is 65088941. The reversal of 65088889 is 98888056.

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 65088889 - 2⁵ = 65088857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65188889) 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, 1712847 + ... + 1712884.

It is an arithmetic number, because the mean of its divisors is an integer number (17128660).

Almost surely, 2^65088889 is an apocalyptic number.

It is an amenable number.

65088889 is a deficient number, since it is larger than the sum of its proper divisors (3425751).

65088889 is a wasteful number, since it uses less digits than its factorization.

65088889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425750.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The square root of 65088889 is about 8067.7685266745. The cubic root of 65088889 is about 402.2557735506.

The spelling of 65088889 in words is "sixty-five million, eighty-eight thousand, eight hundred eighty-nine".