28348417 has 4 divisors (see below), whose sum is σ = 28518336. Its totient is φ = 28178500.

The previous prime is 28348403. The next prime is 28348421. The reversal of 28348417 is 71484382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28348417 - 2⁷ = 28348289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28348427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84709 + ... + 85042.

It is an arithmetic number, because the mean of its divisors is an integer number (7129584).

Almost surely, 2^28348417 is an apocalyptic number.

It is an amenable number.

28348417 is a deficient number, since it is larger than the sum of its proper divisors (169919).

28348417 is a wasteful number, since it uses less digits than its factorization.

28348417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169918.

The product of its digits is 43008, while the sum is 37.

The square root of 28348417 is about 5324.3231494717. The cubic root of 28348417 is about 304.9132316110.

The spelling of 28348417 in words is "twenty-eight million, three hundred forty-eight thousand, four hundred seventeen".