28568943 has 30 divisors (see below), whose sum is σ = 46234584. Its totient is φ = 17572464.

The previous prime is 28568927. The next prime is 28568957. The reversal of 28568943 is 34986582.

It is not a de Polignac number, because 28568943 - 2⁴ = 28568927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28568963) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 12646 + ... + 14732.

Almost surely, 2^28568943 is an apocalyptic number.

28568943 is a deficient number, since it is larger than the sum of its proper divisors (17665641).

28568943 is a wasteful number, since it uses less digits than its factorization.

28568943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125 (or 2103 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 28568943 is about 5344.9923292742. The cubic root of 28568943 is about 305.7018433748.

The spelling of 28568943 in words is "twenty-eight million, five hundred sixty-eight thousand, nine hundred forty-three".