28705935 has 16 divisors (see below), whose sum is σ = 46082016. Its totient is φ = 15259008.

The previous prime is 28705933. The next prime is 28705951. The reversal of 28705935 is 53950782.

It is not a de Polignac number, because 28705935 - 2¹ = 28705933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28705893 and 28705902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28705931) 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, 1737 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (2880126).

Almost surely, 2^28705935 is an apocalyptic number.

28705935 is a deficient number, since it is larger than the sum of its proper divisors (17376081).

28705935 is a wasteful number, since it uses less digits than its factorization.

28705935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6362.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 28705935 is about 5357.7919892433. The cubic root of 28705935 is about 306.1896918592.

The spelling of 28705935 in words is "twenty-eight million, seven hundred five thousand, nine hundred thirty-five".