28058201 has 4 divisors (see below), whose sum is σ = 28655232. Its totient is φ = 27461172.

The previous prime is 28058189. The next prime is 28058213. The reversal of 28058201 is 10285082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (28058189) and next prime (28058213).

It is a cyclic number.

It is not a de Polignac number, because 28058201 - 2¹⁰ = 28057177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28058221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298445 + ... + 298538.

It is an arithmetic number, because the mean of its divisors is an integer number (7163808).

Almost surely, 2^28058201 is an apocalyptic number.

It is an amenable number.

28058201 is a deficient number, since it is larger than the sum of its proper divisors (597031).

28058201 is an equidigital number, since it uses as much as digits as its factorization.

28058201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597030.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 28058201 is about 5296.9992448555. Note that the first 3 decimals coincide. The cubic root of 28058201 is about 303.8691474298.

The spelling of 28058201 in words is "twenty-eight million, fifty-eight thousand, two hundred one".