28935829 has 4 divisors (see below), whose sum is σ = 31161676. Its totient is φ = 26709984.

The previous prime is 28935799. The next prime is 28935839. The reversal of 28935829 is 92853982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15444900 + 13490929 = 3930^2 + 3673^2 .

It is a cyclic number.

It is not a de Polignac number, because 28935829 - 2⁷ = 28935701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28935839) 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 3 ways as a sum of consecutive naturals, for example, 1112904 + ... + 1112929.

It is an arithmetic number, because the mean of its divisors is an integer number (7790419).

Almost surely, 2^28935829 is an apocalyptic number.

It is an amenable number.

28935829 is a deficient number, since it is larger than the sum of its proper divisors (2225847).

28935829 is a wasteful number, since it uses less digits than its factorization.

28935829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225846.

The product of its digits is 311040, while the sum is 46.

The square root of 28935829 is about 5379.2033796836. The cubic root of 28935829 is about 307.0049018305.

The spelling of 28935829 in words is "twenty-eight million, nine hundred thirty-five thousand, eight hundred twenty-nine".