65930689 has 4 divisors (see below), whose sum is σ = 71924400. Its totient is φ = 59936980.

The previous prime is 65930687. The next prime is 65930693. The reversal of 65930689 is 98603956.

65930689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65930689 - 2¹ = 65930687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65930687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2996839 + ... + 2996860.

It is an arithmetic number, because the mean of its divisors is an integer number (17981100).

Almost surely, 2^65930689 is an apocalyptic number.

It is an amenable number.

65930689 is a deficient number, since it is larger than the sum of its proper divisors (5993711).

65930689 is a wasteful number, since it uses less digits than its factorization.

65930689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5993710.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 65930689 is about 8119.7714869324. The cubic root of 65930689 is about 403.9824866603.

The spelling of 65930689 in words is "sixty-five million, nine hundred thirty thousand, six hundred eighty-nine".