28066341 has 4 divisors (see below), whose sum is σ = 37421792. Its totient is φ = 18710892.

The previous prime is 28066333. The next prime is 28066343. The reversal of 28066341 is 14366082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28066341 - 2³ = 28066333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28066299 and 28066308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28066343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4677721 + ... + 4677726.

It is an arithmetic number, because the mean of its divisors is an integer number (9355448).

Almost surely, 2^28066341 is an apocalyptic number.

It is an amenable number.

28066341 is a deficient number, since it is larger than the sum of its proper divisors (9355451).

28066341 is an equidigital number, since it uses as much as digits as its factorization.

28066341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9355450.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 28066341 is about 5297.7675486944. The cubic root of 28066341 is about 303.8985298755.

The spelling of 28066341 in words is "twenty-eight million, sixty-six thousand, three hundred forty-one".