64506004 has 12 divisors (see below), whose sum is σ = 113471764. Its totient is φ = 32085504.

The previous prime is 64505999. The next prime is 64506011. The reversal of 64506004 is 40060546.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46949904 + 17556100 = 6852^2 + 4190^2 .

It is a super-2 number, since 2×64506004² = 8322049104096032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64506004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41007 + ... + 42550.

Almost surely, 2^64506004 is an apocalyptic number.

It is an amenable number.

64506004 is a deficient number, since it is larger than the sum of its proper divisors (48965760).

64506004 is a wasteful number, since it uses less digits than its factorization.

64506004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83754 (or 83752 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 64506004 is about 8031.5629861192. The cubic root of 64506004 is about 401.0514089267.

The spelling of 64506004 in words is "sixty-four million, five hundred six thousand, four".