64706109 has 8 divisors (see below), whose sum is σ = 92911392. Its totient is φ = 39819120.

The previous prime is 64706093. The next prime is 64706113. The reversal of 64706109 is 90160746.

It is a happy number.

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

It is not a de Polignac number, because 64706109 - 2⁴ = 64706093 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64706109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64706129) 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, 829527 + ... + 829604.

It is an arithmetic number, because the mean of its divisors is an integer number (11613924).

Almost surely, 2^64706109 is an apocalyptic number.

It is an amenable number.

64706109 is a deficient number, since it is larger than the sum of its proper divisors (28205283).

64706109 is a wasteful number, since it uses less digits than its factorization.

64706109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659147.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 64706109 is about 8044.0107533494. The cubic root of 64706109 is about 401.4656832883.

The spelling of 64706109 in words is "sixty-four million, seven hundred six thousand, one hundred nine".