65739473 has 4 divisors (see below), whose sum is σ = 65844288. Its totient is φ = 65634660.

The previous prime is 65739463. The next prime is 65739521. The reversal of 65739473 is 37493756.

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 65739473 - 2¹⁸ = 65477329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65739413) 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, 51461 + ... + 52722.

It is an arithmetic number, because the mean of its divisors is an integer number (16461072).

Almost surely, 2^65739473 is an apocalyptic number.

It is an amenable number.

65739473 is a deficient number, since it is larger than the sum of its proper divisors (104815).

65739473 is a wasteful number, since it uses less digits than its factorization.

65739473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104814.

The product of its digits is 476280, while the sum is 44.

The square root of 65739473 is about 8107.9882215011. The cubic root of 65739473 is about 403.5915573550.

The spelling of 65739473 in words is "sixty-five million, seven hundred thirty-nine thousand, four hundred seventy-three".