28803672 has 24 divisors (see below), whose sum is σ = 78010140. Its totient is φ = 9601200.

The previous prime is 28803667. The next prime is 28803701. The reversal of 28803672 is 27630882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199954 + ... + 200097.

Almost surely, 2^28803672 is an apocalyptic number.

It is an amenable number.

28803672 is an abundant number, since it is smaller than the sum of its proper divisors (49206468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28803672 is a wasteful number, since it uses less digits than its factorization.

28803672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400063 (or 400056 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 28803672 is about 5366.9052534957. The cubic root of 28803672 is about 306.5367996642.

The spelling of 28803672 in words is "twenty-eight million, eight hundred three thousand, six hundred seventy-two".