64387232 has 48 divisors (see below), whose sum is σ = 156022272. Its totient is φ = 25470720.

The previous prime is 64387223. The next prime is 64387237. The reversal of 64387232 is 23278346.

64387232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64387192 and 64387201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64387237) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8144 + ... + 13967.

It is an arithmetic number, because the mean of its divisors is an integer number (3250464).

Almost surely, 2^64387232 is an apocalyptic number.

It is an amenable number.

64387232 is an abundant number, since it is smaller than the sum of its proper divisors (91635040).

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

64387232 is a wasteful number, since it uses less digits than its factorization.

64387232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22141 (or 22133 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 64387232 is about 8024.1655017827. The cubic root of 64387232 is about 400.8051117338.

The spelling of 64387232 in words is "sixty-four million, three hundred eighty-seven thousand, two hundred thirty-two".