28985072 has 10 divisors (see below), whose sum is σ = 56158608. Its totient is φ = 14492528.

The previous prime is 28985069. The next prime is 28985113. The reversal of 28985072 is 27058982.

It is a happy number.

28985072 is nontrivially palindromic in base 15.

28985072 is an undulating number in base 15.

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 as a sum of consecutive naturals, namely, 905768 + ... + 905799.

Almost surely, 2^28985072 is an apocalyptic number.

It is an amenable number.

28985072 is a deficient number, since it is larger than the sum of its proper divisors (27173536).

28985072 is a wasteful number, since it uses less digits than its factorization.

28985072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811575 (or 1811569 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 28985072 is about 5383.7785987167. The cubic root of 28985072 is about 307.1789568015.

The spelling of 28985072 in words is "twenty-eight million, nine hundred eighty-five thousand, seventy-two".