28373105 has 4 divisors (see below), whose sum is σ = 34047732. Its totient is φ = 22698480.

The previous prime is 28373089. The next prime is 28373131. The reversal of 28373105 is 50137382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50137382 = 2 ⋅25068691.

It can be written as a sum of positive squares in 2 ways, for example, as 14227984 + 14145121 = 3772^2 + 3761^2 .

It is not a de Polignac number, because 28373105 - 2⁴ = 28373089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2837306 + ... + 2837315.

It is an arithmetic number, because the mean of its divisors is an integer number (8511933).

Almost surely, 2^28373105 is an apocalyptic number.

It is an amenable number.

28373105 is a deficient number, since it is larger than the sum of its proper divisors (5674627).

28373105 is an equidigital number, since it uses as much as digits as its factorization.

28373105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674626.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 28373105 is about 5326.6410616823. The cubic root of 28373105 is about 305.0017199581.

The spelling of 28373105 in words is "twenty-eight million, three hundred seventy-three thousand, one hundred five".