64633032 has 64 divisors (see below), whose sum is σ = 182040000. Its totient is φ = 21244032.

The previous prime is 64633027. The next prime is 64633033. The reversal of 64633032 is 23033646.

64633032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 64632987 and 64633005.

It is not an unprimeable number, because it can be changed into a prime (64633033) 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 15 ways as a sum of consecutive naturals, for example, 13719 + ... + 17817.

It is an arithmetic number, because the mean of its divisors is an integer number (2844375).

Almost surely, 2^64633032 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 64633032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91020000).

64633032 is an abundant number, since it is smaller than the sum of its proper divisors (117406968).

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

64633032 is a wasteful number, since it uses less digits than its factorization.

64633032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187 (or 4177 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

The square root of 64633032 is about 8039.4671465216. The cubic root of 64633032 is about 401.3144922104.

Adding to 64633032 its reverse (23033646), we get a palindrome (87666678).

The spelling of 64633032 in words is "sixty-four million, six hundred thirty-three thousand, thirty-two".