64984032 has 144 divisors (see below), whose sum is σ = 196206192. Its totient is φ = 21150720.

The previous prime is 64984019. The next prime is 64984043. The reversal of 64984032 is 23048946.

It is a happy number.

64984032 is a `hidden beast` number, since 649 + 8 + 4 + 0 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 474268 + ... + 474404.

It is an arithmetic number, because the mean of its divisors is an integer number (1362543).

Almost surely, 2^64984032 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 64984032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98103096).

64984032 is an abundant number, since it is smaller than the sum of its proper divisors (131222160).

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

64984032 is a wasteful number, since it uses less digits than its factorization.

64984032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 64984032 is about 8061.2673941509. The cubic root of 64984032 is about 402.0396485732.

It can be divided in two parts, 649 and 84032, that added together give a square (84681 = 291²).

The spelling of 64984032 in words is "sixty-four million, nine hundred eighty-four thousand, thirty-two".