65984473 has 4 divisors (see below), whose sum is σ = 69457360. Its totient is φ = 62511588.

The previous prime is 65984459. The next prime is 65984507. The reversal of 65984473 is 37448956.

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 65984473 - 2²¹ = 63887321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65984423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736415 + ... + 1736452.

It is an arithmetic number, because the mean of its divisors is an integer number (17364340).

Almost surely, 2^65984473 is an apocalyptic number.

It is an amenable number.

65984473 is a deficient number, since it is larger than the sum of its proper divisors (3472887).

65984473 is a wasteful number, since it uses less digits than its factorization.

65984473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472886.

The product of its digits is 725760, while the sum is 46.

The square root of 65984473 is about 8123.0827276349. The cubic root of 65984473 is about 404.0923084990.

The spelling of 65984473 in words is "sixty-five million, nine hundred eighty-four thousand, four hundred seventy-three".