28806735 has 16 divisors (see below), whose sum is σ = 46172160. Its totient is φ = 15336480.

The previous prime is 28806733. The next prime is 28806737. The reversal of 28806735 is 53760882.

It is an interprime number because it is at equal distance from previous prime (28806733) and next prime (28806737).

It is not a de Polignac number, because 28806735 - 2¹ = 28806733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28806693 and 28806702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28806733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9450 + ... + 12120.

It is an arithmetic number, because the mean of its divisors is an integer number (2885760).

Almost surely, 2^28806735 is an apocalyptic number.

28806735 is a deficient number, since it is larger than the sum of its proper divisors (17365425).

28806735 is a wasteful number, since it uses less digits than its factorization.

28806735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 28806735 is about 5367.1906058943. The cubic root of 28806735 is about 306.5476650489.

The spelling of 28806735 in words is "twenty-eight million, eight hundred six thousand, seven hundred thirty-five".