64706871 has 8 divisors (see below), whose sum is σ = 86512384. Its totient is φ = 43019640.

The previous prime is 64706861. The next prime is 64706891. The reversal of 64706871 is 17860746.

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

It is not a de Polignac number, because 64706871 - 2¹⁴ = 64690487 is a prime.

It is a super-2 number, since 2×64706871² = 8373958309221282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64706861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28285 + ... + 30486.

It is an arithmetic number, because the mean of its divisors is an integer number (10814048).

Almost surely, 2^64706871 is an apocalyptic number.

64706871 is a deficient number, since it is larger than the sum of its proper divisors (21805513).

64706871 is a wasteful number, since it uses less digits than its factorization.

64706871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59141.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 64706871 is about 8044.0581176419. The cubic root of 64706871 is about 401.4672592119.

The spelling of 64706871 in words is "sixty-four million, seven hundred six thousand, eight hundred seventy-one".