664004535 has 16 divisors (see below), whose sum is σ = 1063152000. Its totient is φ = 353887520.

The previous prime is 664004519. The next prime is 664004543. The reversal of 664004535 is 535400466.

It is not a de Polignac number, because 664004535 - 2⁴ = 664004519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664004496 and 664004505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7720 + ... + 37250.

It is an arithmetic number, because the mean of its divisors is an integer number (66447000).

Almost surely, 2^664004535 is an apocalyptic number.

664004535 is a deficient number, since it is larger than the sum of its proper divisors (399147465).

664004535 is a wasteful number, since it uses less digits than its factorization.

664004535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31038.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 664004535 is about 25768.2854493659. The cubic root of 664004535 is about 872.4161204301.

The spelling of 664004535 in words is "six hundred sixty-four million, four thousand, five hundred thirty-five".