28645976 has 8 divisors (see below), whose sum is σ = 53711220. Its totient is φ = 14322984.

The previous prime is 28645937. The next prime is 28645979. The reversal of 28645976 is 67954682.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 28645976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28645979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1790366 + ... + 1790381.

Almost surely, 2^28645976 is an apocalyptic number.

It is an amenable number.

28645976 is a deficient number, since it is larger than the sum of its proper divisors (25065244).

28645976 is a wasteful number, since it uses less digits than its factorization.

28645976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580753 (or 3580749 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 28645976 is about 5352.1935689958. The cubic root of 28645976 is about 305.9763605416.

The spelling of 28645976 in words is "twenty-eight million, six hundred forty-five thousand, nine hundred seventy-six".