28436201 has 8 divisors (see below), whose sum is σ = 29499360. Its totient is φ = 27391392.

The previous prime is 28436173. The next prime is 28436209. The reversal of 28436201 is 10263482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28436201 - 2¹⁴ = 28419817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28436209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391 + ... + 7668.

It is an arithmetic number, because the mean of its divisors is an integer number (3687420).

Almost surely, 2^28436201 is an apocalyptic number.

It is an amenable number.

28436201 is a deficient number, since it is larger than the sum of its proper divisors (1063159).

28436201 is an equidigital number, since it uses as much as digits as its factorization.

28436201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 28436201 is about 5332.5604544159. The cubic root of 28436201 is about 305.2276397851.

Adding to 28436201 its reverse (10263482), we get a palindrome (38699683).

The spelling of 28436201 in words is "twenty-eight million, four hundred thirty-six thousand, two hundred one".