64085745 has 16 divisors (see below), whose sum is σ = 104473152. Its totient is φ = 33533760.

The previous prime is 64085743. The next prime is 64085771. The reversal of 64085745 is 54758046.

It is not a de Polignac number, because 64085745 - 2¹ = 64085743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64085743) 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 15 ways as a sum of consecutive naturals, for example, 39511 + ... + 41100.

It is an arithmetic number, because the mean of its divisors is an integer number (6529572).

Almost surely, 2^64085745 is an apocalyptic number.

It is an amenable number.

64085745 is a deficient number, since it is larger than the sum of its proper divisors (40387407).

64085745 is a wasteful number, since it uses less digits than its factorization.

64085745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80672.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 64085745 is about 8005.3572687295. The cubic root of 64085745 is about 400.1785556995.

The spelling of 64085745 in words is "sixty-four million, eighty-five thousand, seven hundred forty-five".