28605964 has 12 divisors (see below), whose sum is σ = 50338288. Its totient is φ = 14223600.

The previous prime is 28605961. The next prime is 28605989. The reversal of 28605964 is 46950682.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28605961) 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, 19032 + ... + 20479.

Almost surely, 2^28605964 is an apocalyptic number.

It is an amenable number.

28605964 is a deficient number, since it is larger than the sum of its proper divisors (21732324).

28605964 is a wasteful number, since it uses less digits than its factorization.

28605964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39696 (or 39694 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 28605964 is about 5348.4543561668. The cubic root of 28605964 is about 305.8338340581.

The spelling of 28605964 in words is "twenty-eight million, six hundred five thousand, nine hundred sixty-four".