28058273 has 4 divisors (see below), whose sum is σ = 28069908. Its totient is φ = 28046640.

The previous prime is 28058267. The next prime is 28058287. The reversal of 28058273 is 37285082.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 26450449 + 1607824 = 5143^2 + 1268^2 .

It is a cyclic number.

It is not a de Polignac number, because 28058273 - 2⁴ = 28058257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28058213) 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, 698 + ... + 7523.

It is an arithmetic number, because the mean of its divisors is an integer number (7017477).

Almost surely, 2^28058273 is an apocalyptic number.

It is an amenable number.

28058273 is a deficient number, since it is larger than the sum of its proper divisors (11635).

28058273 is an equidigital number, since it uses as much as digits as its factorization.

28058273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11634.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 28058273 is about 5297.0060411519. The cubic root of 28058273 is about 303.8694073486.

The spelling of 28058273 in words is "twenty-eight million, fifty-eight thousand, two hundred seventy-three".