85263487 has 2 divisors, whose sum is σ = 85263488. Its totient is φ = 85263486.

The previous prime is 85263467. The next prime is 85263491. The reversal of 85263487 is 78436258.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85263487 - 2²³ = 76874879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85263467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42631743 + 42631744.

It is an arithmetic number, because the mean of its divisors is an integer number (42631744).

Almost surely, 2^85263487 is an apocalyptic number.

85263487 is a deficient number, since it is larger than the sum of its proper divisors (1).

85263487 is an equidigital number, since it uses as much as digits as its factorization.

85263487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The square root of 85263487 is about 9233.8229894232. The cubic root of 85263487 is about 440.1368152361.

The spelling of 85263487 in words is "eighty-five million, two hundred sixty-three thousand, four hundred eighty-seven".