28153107 has 18 divisors (see below), whose sum is σ = 41300532. Its totient is φ = 18480096.

The previous prime is 28153067. The next prime is 28153121. The reversal of 28153107 is 70135182.

It is not a de Polignac number, because 28153107 - 2¹¹ = 28151059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28153907) 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 17 ways as a sum of consecutive naturals, for example, 47668 + ... + 48254.

It is an arithmetic number, because the mean of its divisors is an integer number (2294474).

Almost surely, 2^28153107 is an apocalyptic number.

28153107 is a deficient number, since it is larger than the sum of its proper divisors (13147425).

28153107 is an equidigital number, since it uses as much as digits as its factorization.

28153107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 28153107 is about 5305.9501505385. The cubic root of 28153107 is about 304.2113712071.

Adding to 28153107 its reverse (70135182), we get a palindrome (98288289).

The spelling of 28153107 in words is "twenty-eight million, one hundred fifty-three thousand, one hundred seven".