28145483 has 4 divisors (see below), whose sum is σ = 28194840. Its totient is φ = 28096128.

The previous prime is 28145477. The next prime is 28145497. The reversal of 28145483 is 38454182.

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 28145483 - 2¹² = 28141387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28145443) 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, 23813 + ... + 24966.

It is an arithmetic number, because the mean of its divisors is an integer number (7048710).

Almost surely, 2^28145483 is an apocalyptic number.

28145483 is a deficient number, since it is larger than the sum of its proper divisors (49357).

28145483 is an equidigital number, since it uses as much as digits as its factorization.

28145483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49356.

The product of its digits is 30720, while the sum is 35.

The square root of 28145483 is about 5305.2316631793. The cubic root of 28145483 is about 304.1839080821.

The spelling of 28145483 in words is "twenty-eight million, one hundred forty-five thousand, four hundred eighty-three".