28362201 has 16 divisors (see below), whose sum is σ = 44274048. Its totient is φ = 15811200.

The previous prime is 28362199. The next prime is 28362211. The reversal of 28362201 is 10226382.

It is not a de Polignac number, because 28362201 - 2¹ = 28362199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28362211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15610 + ... + 17331.

It is an arithmetic number, because the mean of its divisors is an integer number (2767128).

Almost surely, 2^28362201 is an apocalyptic number.

28362201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28362201 is a deficient number, since it is larger than the sum of its proper divisors (15911847).

28362201 is a wasteful number, since it uses less digits than its factorization.

28362201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32992.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 28362201 is about 5325.6174289936. The cubic root of 28362201 is about 304.9626434584.

Adding to 28362201 its reverse (10226382), we get a palindrome (38588583).

The spelling of 28362201 in words is "twenty-eight million, three hundred sixty-two thousand, two hundred one".