28827845 has 16 divisors (see below), whose sum is σ = 37266240. Its totient is φ = 21337344.

The previous prime is 28827839. The next prime is 28827853. The reversal of 28827845 is 54872882.

It is a cyclic number.

It is not a de Polignac number, because 28827845 - 2⁶ = 28827781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28827796 and 28827805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557 + ... + 7613.

It is an arithmetic number, because the mean of its divisors is an integer number (2329140).

Almost surely, 2^28827845 is an apocalyptic number.

It is an amenable number.

28827845 is a deficient number, since it is larger than the sum of its proper divisors (8438395).

28827845 is a wasteful number, since it uses less digits than its factorization.

28827845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124.

The product of its digits is 286720, while the sum is 44.

The square root of 28827845 is about 5369.1568239343. The cubic root of 28827845 is about 306.6225276475.

The spelling of 28827845 in words is "twenty-eight million, eight hundred twenty-seven thousand, eight hundred forty-five".