28601884 has 12 divisors (see below), whose sum is σ = 50094184. Its totient is φ = 14289264.

The previous prime is 28601869. The next prime is 28601899. The reversal of 28601884 is 48810682.

It is an interprime number because it is at equal distance from previous prime (28601869) and next prime (28601899).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 4942 + ... + 9034.

Almost surely, 2^28601884 is an apocalyptic number.

It is an amenable number.

28601884 is a deficient number, since it is larger than the sum of its proper divisors (21492300).

28601884 is a wasteful number, since it uses less digits than its factorization.

28601884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844 (or 5842 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 28601884 is about 5348.0729239606. The cubic root of 28601884 is about 305.8192932514.

The spelling of 28601884 in words is "twenty-eight million, six hundred one thousand, eight hundred eighty-four".