28085371 has 2 divisors, whose sum is σ = 28085372. Its totient is φ = 28085370.

The previous prime is 28085353. The next prime is 28085381. The reversal of 28085371 is 17358082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28085371 - 2¹¹ = 28083323 is a prime.

It is not a weakly prime, because it can be changed into another prime (28085381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14042685 + 14042686.

It is an arithmetic number, because the mean of its divisors is an integer number (14042686).

Almost surely, 2^28085371 is an apocalyptic number.

28085371 is a deficient number, since it is larger than the sum of its proper divisors (1).

28085371 is an equidigital number, since it uses as much as digits as its factorization.

28085371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 28085371 is about 5299.5632838942. The cubic root of 28085371 is about 303.9671991099.

The spelling of 28085371 in words is "twenty-eight million, eighty-five thousand, three hundred seventy-one".