28896635 has 16 divisors (see below), whose sum is σ = 35288352. Its totient is φ = 22713600.

The previous prime is 28896589. The next prime is 28896641. The reversal of 28896635 is 53669882.

It is a happy number.

It is not a de Polignac number, because 28896635 - 2¹⁸ = 28634491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28896635.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102695 + ... + 102975.

It is an arithmetic number, because the mean of its divisors is an integer number (2205522).

Almost surely, 2^28896635 is an apocalyptic number.

28896635 is a deficient number, since it is larger than the sum of its proper divisors (6391717).

28896635 is a wasteful number, since it uses less digits than its factorization.

28896635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574.

The product of its digits is 622080, while the sum is 47.

The square root of 28896635 is about 5375.5590406952. The cubic root of 28896635 is about 306.8662250012.

The spelling of 28896635 in words is "twenty-eight million, eight hundred ninety-six thousand, six hundred thirty-five".