28267283 has 4 divisors (see below), whose sum is σ = 30837048. Its totient is φ = 25697520.

The previous prime is 28267273. The next prime is 28267303. The reversal of 28267283 is 38276282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28267283 - 2⁶ = 28267219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28267273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284866 + ... + 1284887.

It is an arithmetic number, because the mean of its divisors is an integer number (7709262).

Almost surely, 2^28267283 is an apocalyptic number.

28267283 is a deficient number, since it is larger than the sum of its proper divisors (2569765).

28267283 is a wasteful number, since it uses less digits than its factorization.

28267283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569764.

The product of its digits is 64512, while the sum is 38.

The square root of 28267283 is about 5316.6985056518. The cubic root of 28267283 is about 304.6220634561.

The spelling of 28267283 in words is "twenty-eight million, two hundred sixty-seven thousand, two hundred eighty-three".