64704132 has 18 divisors (see below), whose sum is σ = 163557758. Its totient is φ = 21568032.

The previous prime is 64704131. The next prime is 64704151. The reversal of 64704132 is 23140746.

64704132 is a `hidden beast` number, since 647 + 0 + 4 + 13 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47114496 + 17589636 = 6864^2 + 4194^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 64704096 and 64704105.

It is not an unprimeable number, because it can be changed into a prime (64704131) 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, 898633 + ... + 898704.

Almost surely, 2^64704132 is an apocalyptic number.

It is an amenable number.

64704132 is an abundant number, since it is smaller than the sum of its proper divisors (98853626).

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

64704132 is a wasteful number, since it uses less digits than its factorization.

64704132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797347 (or 1797342 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 64704132 is about 8043.8878659514. The cubic root of 64704132 is about 401.4615945155.

Adding to 64704132 its reverse (23140746), we get a palindrome (87844878).

The spelling of 64704132 in words is "sixty-four million, seven hundred four thousand, one hundred thirty-two".