28454201 has 2 divisors, whose sum is σ = 28454202. Its totient is φ = 28454200.

The previous prime is 28454177. The next prime is 28454213. The reversal of 28454201 is 10245482.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20748025 + 7706176 = 4555^2 + 2776^2 .

It is a cyclic number.

It is not a de Polignac number, because 28454201 - 2⁶ = 28454137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28454281) 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 as a sum of consecutive naturals, namely, 14227100 + 14227101.

It is an arithmetic number, because the mean of its divisors is an integer number (14227101).

Almost surely, 2^28454201 is an apocalyptic number.

It is an amenable number.

28454201 is a deficient number, since it is larger than the sum of its proper divisors (1).

28454201 is an equidigital number, since it uses as much as digits as its factorization.

28454201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 28454201 is about 5334.2479319957. The cubic root of 28454201 is about 305.2920288207.

Adding to 28454201 its reverse (10245482), we get a palindrome (38699683).

The spelling of 28454201 in words is "twenty-eight million, four hundred fifty-four thousand, two hundred one".