28331941 has 8 divisors (see below), whose sum is σ = 31082400. Its totient is φ = 25610640.

The previous prime is 28331939. The next prime is 28331951. The reversal of 28331941 is 14913382.

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

It is not a de Polignac number, because 28331941 - 2¹ = 28331939 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 (28331951) 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 7 ways as a sum of consecutive naturals, for example, 5226 + ... + 9163.

It is an arithmetic number, because the mean of its divisors is an integer number (3885300).

Almost surely, 2^28331941 is an apocalyptic number.

It is an amenable number.

28331941 is a deficient number, since it is larger than the sum of its proper divisors (2750459).

28331941 is a wasteful number, since it uses less digits than its factorization.

28331941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14579.

The product of its digits is 5184, while the sum is 31.

The square root of 28331941 is about 5322.7756856738. The cubic root of 28331941 is about 304.8541486649.

It can be divided in two parts, 2833 and 1941, that added together give a palindrome (4774).

The spelling of 28331941 in words is "twenty-eight million, three hundred thirty-one thousand, nine hundred forty-one".