28114501 has 2 divisors, whose sum is σ = 28114502. Its totient is φ = 28114500.

The previous prime is 28114469. The next prime is 28114517. The reversal of 28114501 is 10541182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27552001 + 562500 = 5249^2 + 750^2 .

It is a cyclic number.

It is not a de Polignac number, because 28114501 - 2⁵ = 28114469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28114591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14057250 + 14057251.

It is an arithmetic number, because the mean of its divisors is an integer number (14057251).

Almost surely, 2^28114501 is an apocalyptic number.

It is an amenable number.

28114501 is a deficient number, since it is larger than the sum of its proper divisors (1).

28114501 is an equidigital number, since it uses as much as digits as its factorization.

28114501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 28114501 is about 5302.3109112914. The cubic root of 28114501 is about 304.0722538609.

Adding to 28114501 its reverse (10541182), we get a palindrome (38655683).

The spelling of 28114501 in words is "twenty-eight million, one hundred fourteen thousand, five hundred one".