64859536 has 30 divisors (see below), whose sum is σ = 146183910. Its totient is φ = 27796608.

The previous prime is 64859527. The next prime is 64859537. The reversal of 64859536 is 63595846.

It can be written as a sum of positive squares in only one way, i.e., 52998400 + 11861136 = 7280^2 + 3444^2 .

It is not an unprimeable number, because it can be changed into a prime (64859537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40581 + ... + 42148.

It is an arithmetic number, because the mean of its divisors is an integer number (4872797).

Almost surely, 2^64859536 is an apocalyptic number.

It is an amenable number.

64859536 is an abundant number, since it is smaller than the sum of its proper divisors (81324374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64859536 is a wasteful number, since it uses less digits than its factorization.

64859536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82751 (or 82738 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The square root of 64859536 is about 8053.5418295307. The cubic root of 64859536 is about 401.7827427667.

The spelling of 64859536 in words is "sixty-four million, eight hundred fifty-nine thousand, five hundred thirty-six".