28847943 has 12 divisors (see below), whose sum is σ = 41783040. Its totient is φ = 19179456.

The previous prime is 28847927. The next prime is 28847971. The reversal of 28847943 is 34974882.

It is not a de Polignac number, because 28847943 - 2⁴ = 28847927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28847983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 738 + ... + 7631.

It is an arithmetic number, because the mean of its divisors is an integer number (3481920).

Almost surely, 2^28847943 is an apocalyptic number.

28847943 is a deficient number, since it is larger than the sum of its proper divisors (12935097).

28847943 is a wasteful number, since it uses less digits than its factorization.

28847943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758 (or 8755 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 28847943 is about 5371.0281138717. The cubic root of 28847943 is about 306.6937674275.

The spelling of 28847943 in words is "twenty-eight million, eight hundred forty-seven thousand, nine hundred forty-three".