28684341 has 16 divisors (see below), whose sum is σ = 48566400. Its totient is φ = 16390944.

The previous prime is 28684333. The next prime is 28684349. The reversal of 28684341 is 14348682.

It is an interprime number because it is at equal distance from previous prime (28684333) and next prime (28684349).

It is not a de Polignac number, because 28684341 - 2³ = 28684333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28684296 and 28684305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28684349) 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 15 ways as a sum of consecutive naturals, for example, 75696 + ... + 76073.

It is an arithmetic number, because the mean of its divisors is an integer number (3035400).

Almost surely, 2^28684341 is an apocalyptic number.

28684341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28684341 is a deficient number, since it is larger than the sum of its proper divisors (19882059).

28684341 is a wasteful number, since it uses less digits than its factorization.

28684341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151785 (or 151779 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 28684341 is about 5355.7764143026. The cubic root of 28684341 is about 306.1128956749.

The spelling of 28684341 in words is "twenty-eight million, six hundred eighty-four thousand, three hundred forty-one".