64927105 has 4 divisors (see below), whose sum is σ = 77912532. Its totient is φ = 51941680.

The previous prime is 64927103. The next prime is 64927117. The reversal of 64927105 is 50172946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50172946 = 2 ⋅25086473.

It can be written as a sum of positive squares in 2 ways, for example, as 46471489 + 18455616 = 6817^2 + 4296^2 .

It is not a de Polignac number, because 64927105 - 2¹ = 64927103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64927103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6492706 + ... + 6492715.

It is an arithmetic number, because the mean of its divisors is an integer number (19478133).

Almost surely, 2^64927105 is an apocalyptic number.

It is an amenable number.

64927105 is a deficient number, since it is larger than the sum of its proper divisors (12985427).

64927105 is a wasteful number, since it uses less digits than its factorization.

64927105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12985426.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 64927105 is about 8057.7357241349. The cubic root of 64927105 is about 401.9222166610.

The spelling of 64927105 in words is "sixty-four million, nine hundred twenty-seven thousand, one hundred five".