64071471 has 8 divisors (see below), whose sum is σ = 86274864. Its totient is φ = 42291200.

The previous prime is 64071467. The next prime is 64071473. The reversal of 64071471 is 17417046.

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 64071471 - 2² = 64071467 is a prime.

It is a super-3 number, since 3×64071471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64071473) 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, 105426 + ... + 106031.

It is an arithmetic number, because the mean of its divisors is an integer number (10784358).

Almost surely, 2^64071471 is an apocalyptic number.

64071471 is a deficient number, since it is larger than the sum of its proper divisors (22203393).

64071471 is a wasteful number, since it uses less digits than its factorization.

64071471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211561.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 64071471 is about 8004.4656911002. The cubic root of 64071471 is about 400.1488425246.

The spelling of 64071471 in words is "sixty-four million, seventy-one thousand, four hundred seventy-one".