28200301 has 4 divisors (see below), whose sum is σ = 28218652. Its totient is φ = 28181952.

The previous prime is 28200287. The next prime is 28200349. The reversal of 28200301 is 10300282.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22099401 + 6100900 = 4701^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 28200301 - 2⁹ = 28199789 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 (28200901) 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, 6636 + ... + 10021.

It is an arithmetic number, because the mean of its divisors is an integer number (7054663).

Almost surely, 2^28200301 is an apocalyptic number.

It is an amenable number.

28200301 is a deficient number, since it is larger than the sum of its proper divisors (18351).

28200301 is a wasteful number, since it uses less digits than its factorization.

28200301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18350.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 28200301 is about 5310.3955596547. The cubic root of 28200301 is about 304.3812628945.

Adding to 28200301 its reverse (10300282), we get a palindrome (38500583).

The spelling of 28200301 in words is "twenty-eight million, two hundred thousand, three hundred one".