28993076 has 12 divisors (see below), whose sum is σ = 57986208. Its totient is φ = 12425592.

The previous prime is 28993049. The next prime is 28993093. The reversal of 28993076 is 67039982.

28993076 is an admirable number.

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, 517706 + ... + 517761.

It is an arithmetic number, because the mean of its divisors is an integer number (4832184).

Almost surely, 2^28993076 is an apocalyptic number.

It is an amenable number.

28993076 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28993076 is a wasteful number, since it uses less digits than its factorization.

28993076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035478 (or 1035476 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 28993076 is about 5384.5218914960. The cubic root of 28993076 is about 307.2072292181.

The spelling of 28993076 in words is "twenty-eight million, nine hundred ninety-three thousand, seventy-six".