65343985 has 8 divisors (see below), whose sum is σ = 89614656. Its totient is φ = 44807280.

The previous prime is 65343977. The next prime is 65343997. The reversal of 65343985 is 58934356.

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

It is not a de Polignac number, because 65343985 - 2³ = 65343977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933451 + ... + 933520.

It is an arithmetic number, because the mean of its divisors is an integer number (11201832).

Almost surely, 2^65343985 is an apocalyptic number.

It is an amenable number.

65343985 is a deficient number, since it is larger than the sum of its proper divisors (24270671).

65343985 is a wasteful number, since it uses less digits than its factorization.

65343985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866983.

The product of its digits is 388800, while the sum is 43.

The square root of 65343985 is about 8083.5626427956. The cubic root of 65343985 is about 402.7805946938.

The spelling of 65343985 in words is "sixty-five million, three hundred forty-three thousand, nine hundred eighty-five".