28348243 has 12 divisors (see below), whose sum is σ = 35612080. Its totient is φ = 22088880.

The previous prime is 28348237. The next prime is 28348267. The reversal of 28348243 is 34284382.

It is not a de Polignac number, because 28348243 - 2⁵ = 28348211 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28348199 and 28348208.

It is not an unprimeable number, because it can be changed into a prime (28348643) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 15888 + ... + 17581.

Almost surely, 2^28348243 is an apocalyptic number.

28348243 is a deficient number, since it is larger than the sum of its proper divisors (7263837).

28348243 is a wasteful number, since it uses less digits than its factorization.

28348243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33498 (or 33487 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 28348243 is about 5324.3068093415. The cubic root of 28348243 is about 304.9126077665.

The spelling of 28348243 in words is "twenty-eight million, three hundred forty-eight thousand, two hundred forty-three".