28041583 has 2 divisors, whose sum is σ = 28041584. Its totient is φ = 28041582.

The previous prime is 28041557. The next prime is 28041593. The reversal of 28041583 is 38514082.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28041583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28041593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14020791 + 14020792.

It is an arithmetic number, because the mean of its divisors is an integer number (14020792).

Almost surely, 2^28041583 is an apocalyptic number.

28041583 is a deficient number, since it is larger than the sum of its proper divisors (1).

28041583 is an equidigital number, since it uses as much as digits as its factorization.

28041583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28041583 is about 5295.4303885520. The cubic root of 28041583 is about 303.8091448332.

The spelling of 28041583 in words is "twenty-eight million, forty-one thousand, five hundred eighty-three".