28450101 has 8 divisors (see below), whose sum is σ = 37993504. Its totient is φ = 18936720.

The previous prime is 28450069. The next prime is 28450141. The reversal of 28450101 is 10105482.

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

It is not a de Polignac number, because 28450101 - 2⁵ = 28450069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28450141) 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 7 ways as a sum of consecutive naturals, for example, 5191 + ... + 9156.

It is an arithmetic number, because the mean of its divisors is an integer number (4749188).

Almost surely, 2^28450101 is an apocalyptic number.

It is an amenable number.

28450101 is a deficient number, since it is larger than the sum of its proper divisors (9543403).

28450101 is a wasteful number, since it uses less digits than its factorization.

28450101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15011.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 28450101 is about 5333.8636090549. The cubic root of 28450101 is about 305.2773648180.

Adding to 28450101 its reverse (10105482), we get a palindrome (38555583).

The spelling of 28450101 in words is "twenty-eight million, four hundred fifty thousand, one hundred one".