65861089 has 8 divisors (see below), whose sum is σ = 75322368. Its totient is φ = 56412960.

The previous prime is 65861069. The next prime is 65861113. The reversal of 65861089 is 98016856.

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

It is a cyclic number.

It is not a de Polignac number, because 65861089 - 2⁹ = 65860577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65861069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12549 + ... + 17005.

It is an arithmetic number, because the mean of its divisors is an integer number (9415296).

Almost surely, 2^65861089 is an apocalyptic number.

It is an amenable number.

65861089 is a deficient number, since it is larger than the sum of its proper divisors (9461279).

65861089 is a wasteful number, since it uses less digits than its factorization.

65861089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 65861089 is about 8115.4845203475. The cubic root of 65861089 is about 403.8402813570.

The spelling of 65861089 in words is "sixty-five million, eight hundred sixty-one thousand, eighty-nine".