85563827 has 2 divisors, whose sum is σ = 85563828. Its totient is φ = 85563826.

The previous prime is 85563773. The next prime is 85563847. The reversal of 85563827 is 72836558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85563827 - 2⁶ = 85563763 is a prime.

It is not a weakly prime, because it can be changed into another prime (85563847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42781913 + 42781914.

It is an arithmetic number, because the mean of its divisors is an integer number (42781914).

Almost surely, 2^85563827 is an apocalyptic number.

85563827 is a deficient number, since it is larger than the sum of its proper divisors (1).

85563827 is an equidigital number, since it uses as much as digits as its factorization.

85563827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 44.

The square root of 85563827 is about 9250.0717294516. The cubic root of 85563827 is about 440.6530025092.

The spelling of 85563827 in words is "eighty-five million, five hundred sixty-three thousand, eight hundred twenty-seven".