28968243 has 8 divisors (see below), whose sum is σ = 38720400. Its totient is φ = 19264128.

The previous prime is 28968241. The next prime is 28968257. The reversal of 28968243 is 34286982.

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

It is not a de Polignac number, because 28968243 - 2¹ = 28968241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28968195 and 28968204.

It is not an unprimeable number, because it can be changed into a prime (28968241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10578 + ... + 13031.

It is an arithmetic number, because the mean of its divisors is an integer number (4840050).

Almost surely, 2^28968243 is an apocalyptic number.

28968243 is a deficient number, since it is larger than the sum of its proper divisors (9752157).

28968243 is a wasteful number, since it uses less digits than its factorization.

28968243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24021.

The product of its digits is 165888, while the sum is 42.

The square root of 28968243 is about 5382.2154360449. The cubic root of 28968243 is about 307.1194949806.

The spelling of 28968243 in words is "twenty-eight million, nine hundred sixty-eight thousand, two hundred forty-three".