28354417 has 16 divisors (see below), whose sum is σ = 35562240. Its totient is φ = 22007232.

The previous prime is 28354399. The next prime is 28354427. The reversal of 28354417 is 71445382.

It is not a de Polignac number, because 28354417 - 2¹⁹ = 27830129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28354427) 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 15 ways as a sum of consecutive naturals, for example, 1884 + ... + 7762.

It is an arithmetic number, because the mean of its divisors is an integer number (2222640).

Almost surely, 2^28354417 is an apocalyptic number.

It is an amenable number.

28354417 is a deficient number, since it is larger than the sum of its proper divisors (7207823).

28354417 is a wasteful number, since it uses less digits than its factorization.

28354417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952.

The product of its digits is 26880, while the sum is 34.

The square root of 28354417 is about 5324.8865715619. The cubic root of 28354417 is about 304.9347419283.

Adding to 28354417 its reverse (71445382), we get a palindrome (99799799).

The spelling of 28354417 in words is "twenty-eight million, three hundred fifty-four thousand, four hundred seventeen".