28063317 has 16 divisors (see below), whose sum is σ = 38266880. Its totient is φ = 18289152.

The previous prime is 28063313. The next prime is 28063319. The reversal of 28063317 is 71336082.

It is not a de Polignac number, because 28063317 - 2² = 28063313 is a prime.

It is a super-2 number, since 2×28063317² = 1575099522084978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28063313) 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, 27309 + ... + 28317.

It is an arithmetic number, because the mean of its divisors is an integer number (2391680).

Almost surely, 2^28063317 is an apocalyptic number.

It is an amenable number.

28063317 is a deficient number, since it is larger than the sum of its proper divisors (10203563).

28063317 is a wasteful number, since it uses less digits than its factorization.

28063317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 28063317 is about 5297.4821377707. The cubic root of 28063317 is about 303.8876149963.

Adding to 28063317 its reverse (71336082), we get a palindrome (99399399).

The spelling of 28063317 in words is "twenty-eight million, sixty-three thousand, three hundred seventeen".