28248367 has 4 divisors (see below), whose sum is σ = 32283856. Its totient is φ = 24212880.

The previous prime is 28248361. The next prime is 28248379. The reversal of 28248367 is 76384282.

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 28248367 - 2³ = 28248359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28248361) 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, 2017734 + ... + 2017747.

It is an arithmetic number, because the mean of its divisors is an integer number (8070964).

Almost surely, 2^28248367 is an apocalyptic number.

28248367 is a deficient number, since it is larger than the sum of its proper divisors (4035489).

28248367 is an equidigital number, since it uses as much as digits as its factorization.

28248367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035488.

The product of its digits is 129024, while the sum is 40.

The square root of 28248367 is about 5314.9192844294. The cubic root of 28248367 is about 304.5540989385.

The spelling of 28248367 in words is "twenty-eight million, two hundred forty-eight thousand, three hundred sixty-seven".