64886536 has 48 divisors (see below), whose sum is σ = 143750160. Its totient is φ = 27218880.

The previous prime is 64886513. The next prime is 64886557. The reversal of 64886536 is 63568846.

64886536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12691 + ... + 17053.

It is an arithmetic number, because the mean of its divisors is an integer number (2994795).

Almost surely, 2^64886536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64886536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71875080).

64886536 is an abundant number, since it is smaller than the sum of its proper divisors (78863624).

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

64886536 is a wasteful number, since it uses less digits than its factorization.

64886536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406 (or 4389 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 64886536 is about 8055.2179362200. The cubic root of 64886536 is about 401.8384869680.

The spelling of 64886536 in words is "sixty-four million, eight hundred eighty-six thousand, five hundred thirty-six".