28986829 has 4 divisors (see below), whose sum is σ = 29921920. Its totient is φ = 28051740.

The previous prime is 28986821. The next prime is 28986847. The reversal of 28986829 is 92868982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28986829 - 2³ = 28986821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28986821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467499 + ... + 467560.

It is an arithmetic number, because the mean of its divisors is an integer number (7480480).

Almost surely, 2^28986829 is an apocalyptic number.

It is an amenable number.

28986829 is a deficient number, since it is larger than the sum of its proper divisors (935091).

28986829 is an equidigital number, since it uses as much as digits as its factorization.

28986829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935090.

The product of its digits is 995328, while the sum is 52.

The square root of 28986829 is about 5383.9417716019. The cubic root of 28986829 is about 307.1851634737.

The spelling of 28986829 in words is "twenty-eight million, nine hundred eighty-six thousand, eight hundred twenty-nine".