28950827 has 4 divisors (see below), whose sum is σ = 28993416. Its totient is φ = 28908240.

The previous prime is 28950821. The next prime is 28950829. The reversal of 28950827 is 72805982.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28950827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28950821) 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, 20258 + ... + 21639.

It is an arithmetic number, because the mean of its divisors is an integer number (7248354).

Almost surely, 2^28950827 is an apocalyptic number.

28950827 is a deficient number, since it is larger than the sum of its proper divisors (42589).

28950827 is an equidigital number, since it uses as much as digits as its factorization.

28950827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42588.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 28950827 is about 5380.5972716790. The cubic root of 28950827 is about 307.0579348623.

The spelling of 28950827 in words is "twenty-eight million, nine hundred fifty thousand, eight hundred twenty-seven".