64811343 has 8 divisors (see below), whose sum is σ = 86611968. Its totient is φ = 43109144.

The previous prime is 64811287. The next prime is 64811377. The reversal of 64811343 is 34311846.

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 64811343 - 2¹⁷ = 64680271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64811343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64811443) 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, 23055 + ... + 25712.

It is an arithmetic number, because the mean of its divisors is an integer number (10826496).

Almost surely, 2^64811343 is an apocalyptic number.

64811343 is a deficient number, since it is larger than the sum of its proper divisors (21800625).

64811343 is a wasteful number, since it uses less digits than its factorization.

64811343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49213.

The product of its digits is 6912, while the sum is 30.

The square root of 64811343 is about 8050.5492359217. The cubic root of 64811343 is about 401.6832050337.

The spelling of 64811343 in words is "sixty-four million, eight hundred eleven thousand, three hundred forty-three".