28915201 has 8 divisors (see below), whose sum is σ = 33107840. Its totient is φ = 24738048.

The previous prime is 28915177. The next prime is 28915213. The reversal of 28915201 is 10251982.

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 28915201 - 2⁹ = 28914689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28915201.

It is not an unprimeable number, because it can be changed into a prime (28915261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460 + ... + 7618.

It is an arithmetic number, because the mean of its divisors is an integer number (4138480).

Almost surely, 2^28915201 is an apocalyptic number.

It is an amenable number.

28915201 is a deficient number, since it is larger than the sum of its proper divisors (4192639).

28915201 is an equidigital number, since it uses as much as digits as its factorization.

28915201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 28915201 is about 5377.2856535617. The cubic root of 28915201 is about 306.9319311363.

The spelling of 28915201 in words is "twenty-eight million, nine hundred fifteen thousand, two hundred one".