28035513 has 24 divisors (see below), whose sum is σ = 45261216. Its totient is φ = 16574400.

The previous prime is 28035503. The next prime is 28035523. The reversal of 28035513 is 31553082.

It is an interprime number because it is at equal distance from previous prime (28035503) and next prime (28035523).

It is not a de Polignac number, because 28035513 - 2⁹ = 28035001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28035503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 606 + ... + 7512.

It is an arithmetic number, because the mean of its divisors is an integer number (1885884).

Almost surely, 2^28035513 is an apocalyptic number.

It is an amenable number.

28035513 is a deficient number, since it is larger than the sum of its proper divisors (17225703).

28035513 is a wasteful number, since it uses less digits than its factorization.

28035513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965 (or 6962 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 28035513 is about 5294.8572218710. The cubic root of 28035513 is about 303.7872219792.

Adding to 28035513 its reverse (31553082), we get a palindrome (59588595).

The spelling of 28035513 in words is "twenty-eight million, thirty-five thousand, five hundred thirteen".