28548371 has 4 divisors (see below), whose sum is σ = 28578744. Its totient is φ = 28518000.

The previous prime is 28548353. The next prime is 28548379. The reversal of 28548371 is 17384582.

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 28548371 - 2⁶ = 28548307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28548379) 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, 13730 + ... + 15671.

It is an arithmetic number, because the mean of its divisors is an integer number (7144686).

Almost surely, 2^28548371 is an apocalyptic number.

28548371 is a deficient number, since it is larger than the sum of its proper divisors (30373).

28548371 is an equidigital number, since it uses as much as digits as its factorization.

28548371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30372.

The product of its digits is 53760, while the sum is 38.

The square root of 28548371 is about 5343.0675646112. The cubic root of 28548371 is about 305.6284488914.

The spelling of 28548371 in words is "twenty-eight million, five hundred forty-eight thousand, three hundred seventy-one".