28950243 has 48 divisors (see below), whose sum is σ = 48625920. Its totient is φ = 14961024.

The previous prime is 28950227. The next prime is 28950263. The reversal of 28950243 is 34205982.

It is a happy number.

It is not a de Polignac number, because 28950243 - 2⁴ = 28950227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28950203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 546205 + ... + 546257.

It is an arithmetic number, because the mean of its divisors is an integer number (1013040).

Almost surely, 2^28950243 is an apocalyptic number.

28950243 is a deficient number, since it is larger than the sum of its proper divisors (19675677).

28950243 is a wasteful number, since it uses less digits than its factorization.

28950243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 28950243 is about 5380.5430023372. The cubic root of 28950243 is about 307.0558701770.

The spelling of 28950243 in words is "twenty-eight million, nine hundred fifty thousand, two hundred forty-three".