28174541 has 2 divisors, whose sum is σ = 28174542. Its totient is φ = 28174540.

The previous prime is 28174529. The next prime is 28174543. The reversal of 28174541 is 14547182.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27604516 + 570025 = 5254^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 28174541 - 2⁶ = 28174477 is a prime.

Together with 28174543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28174498 and 28174507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28174543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14087270 + 14087271.

It is an arithmetic number, because the mean of its divisors is an integer number (14087271).

Almost surely, 2^28174541 is an apocalyptic number.

It is an amenable number.

28174541 is a deficient number, since it is larger than the sum of its proper divisors (1).

28174541 is an equidigital number, since it uses as much as digits as its factorization.

28174541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 32.

The square root of 28174541 is about 5307.9695741404. The cubic root of 28174541 is about 304.2885540733.

The spelling of 28174541 in words is "twenty-eight million, one hundred seventy-four thousand, five hundred forty-one".