85441787 has 2 divisors, whose sum is σ = 85441788. Its totient is φ = 85441786.

The previous prime is 85441751. The next prime is 85441789. The reversal of 85441787 is 78714458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85441787 - 2¹⁰ = 85440763 is a prime.

Together with 85441789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85441789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42720893 + 42720894.

It is an arithmetic number, because the mean of its divisors is an integer number (42720894).

Almost surely, 2^85441787 is an apocalyptic number.

85441787 is a deficient number, since it is larger than the sum of its proper divisors (1).

85441787 is an equidigital number, since it uses as much as digits as its factorization.

85441787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 250880, while the sum is 44.

The square root of 85441787 is about 9243.4726699439. The cubic root of 85441787 is about 440.4434011618.

The spelling of 85441787 in words is "eighty-five million, four hundred forty-one thousand, seven hundred eighty-seven".