85074287 has 2 divisors, whose sum is σ = 85074288. Its totient is φ = 85074286.

The previous prime is 85074271. The next prime is 85074289. The reversal of 85074287 is 78247058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85074287 - 2⁴ = 85074271 is a prime.

Together with 85074289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85074289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42537143 + 42537144.

It is an arithmetic number, because the mean of its divisors is an integer number (42537144).

Almost surely, 2^85074287 is an apocalyptic number.

85074287 is a deficient number, since it is larger than the sum of its proper divisors (1).

85074287 is an equidigital number, since it uses as much as digits as its factorization.

85074287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 85074287 is about 9223.5723556548. The cubic root of 85074287 is about 439.8110190505.

The spelling of 85074287 in words is "eighty-five million, seventy-four thousand, two hundred eighty-seven".