28339829 has 8 divisors (see below), whose sum is σ = 32554368. Its totient is φ = 24166800.

The previous prime is 28339813. The next prime is 28339853. The reversal of 28339829 is 92893382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28339829 - 2⁴ = 28339813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28339829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28339879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8897 + ... + 11654.

It is an arithmetic number, because the mean of its divisors is an integer number (4069296).

Almost surely, 2^28339829 is an apocalyptic number.

It is an amenable number.

28339829 is a deficient number, since it is larger than the sum of its proper divisors (4214539).

28339829 is a wasteful number, since it uses less digits than its factorization.

28339829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20755.

The product of its digits is 186624, while the sum is 44.

The square root of 28339829 is about 5323.5166008946. The cubic root of 28339829 is about 304.8824378950.

The spelling of 28339829 in words is "twenty-eight million, three hundred thirty-nine thousand, eight hundred twenty-nine".