64859085 has 12 divisors (see below), whose sum is σ = 112422492. Its totient is φ = 34591488.

The previous prime is 64859071. The next prime is 64859087. The reversal of 64859085 is 58095846.

64859085 is a `hidden beast` number, since 6 + 485 + 90 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45198729 + 19660356 = 6723^2 + 4434^2 .

It is not a de Polignac number, because 64859085 - 2⁶ = 64859021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1441313 = 64859085 / (6 + 4 + 8 + 5 + 9 + 0 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 64859085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64859087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 720612 + ... + 720701.

It is an arithmetic number, because the mean of its divisors is an integer number (9368541).

Almost surely, 2^64859085 is an apocalyptic number.

It is an amenable number.

64859085 is a deficient number, since it is larger than the sum of its proper divisors (47563407).

64859085 is a wasteful number, since it uses less digits than its factorization.

64859085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441324 (or 1441321 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 64859085 is about 8053.5138293791. The cubic root of 64859085 is about 401.7818115007.

The spelling of 64859085 in words is "sixty-four million, eight hundred fifty-nine thousand, eighty-five".