65471671 has 8 divisors (see below), whose sum is σ = 67179024. Its totient is φ = 63772800.

The previous prime is 65471657. The next prime is 65471687. The reversal of 65471671 is 17617456.

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 65471671 - 2¹⁹ = 64947383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65471671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65471621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15345 + ... + 19141.

It is an arithmetic number, because the mean of its divisors is an integer number (8397378).

Almost surely, 2^65471671 is an apocalyptic number.

65471671 is a deficient number, since it is larger than the sum of its proper divisors (1707353).

65471671 is a wasteful number, since it uses less digits than its factorization.

65471671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241.

The product of its digits is 35280, while the sum is 37.

The square root of 65471671 is about 8091.4566673745. The cubic root of 65471671 is about 403.0427763397.

The spelling of 65471671 in words is "sixty-five million, four hundred seventy-one thousand, six hundred seventy-one".