28900847 has 8 divisors (see below), whose sum is σ = 29743200. Its totient is φ = 28069600.

The previous prime is 28900841. The next prime is 28900889. The reversal of 28900847 is 74800982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28900847 - 2¹⁶ = 28835311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28900847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28900841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2654 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (3717900).

Almost surely, 2^28900847 is an apocalyptic number.

28900847 is a deficient number, since it is larger than the sum of its proper divisors (842353).

28900847 is a wasteful number, since it uses less digits than its factorization.

28900847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 28900847 is about 5375.9507996261. The cubic root of 28900847 is about 306.8811339775.

The spelling of 28900847 in words is "twenty-eight million, nine hundred thousand, eight hundred forty-seven".