28125841 has 2 divisors, whose sum is σ = 28125842. Its totient is φ = 28125840.

The previous prime is 28125793. The next prime is 28125847. The reversal of 28125841 is 14852182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25553025 + 2572816 = 5055^2 + 1604^2 .

It is a cyclic number.

It is not a de Polignac number, because 28125841 - 2⁹ = 28125329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28125847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14062920 + 14062921.

It is an arithmetic number, because the mean of its divisors is an integer number (14062921).

Almost surely, 2^28125841 is an apocalyptic number.

It is an amenable number.

28125841 is a deficient number, since it is larger than the sum of its proper divisors (1).

28125841 is an equidigital number, since it uses as much as digits as its factorization.

28125841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 31.

The square root of 28125841 is about 5303.3801485468. The cubic root of 28125841 is about 304.1131309377.

The spelling of 28125841 in words is "twenty-eight million, one hundred twenty-five thousand, eight hundred forty-one".