64209004 has 12 divisors (see below), whose sum is σ = 112424704. Its totient is φ = 32087664.

The previous prime is 64208971. The next prime is 64209007. The reversal of 64209004 is 40090246.

64209004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64209004.

It is not an unprimeable number, because it can be changed into a prime (64209007) 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 3 ways as a sum of consecutive naturals, for example, 8917 + ... + 14419.

Almost surely, 2^64209004 is an apocalyptic number.

It is an amenable number.

64209004 is a deficient number, since it is larger than the sum of its proper divisors (48215700).

64209004 is a wasteful number, since it uses less digits than its factorization.

64209004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8424 (or 8422 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 64209004 is about 8013.0521026635. The cubic root of 64209004 is about 400.4349518707.

The spelling of 64209004 in words is "sixty-four million, two hundred nine thousand, four".