85074271 has 2 divisors, whose sum is σ = 85074272. Its totient is φ = 85074270.

The previous prime is 85074257. The next prime is 85074287. The reversal of 85074271 is 17247058.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85074271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85074251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42537135 + 42537136.

It is an arithmetic number, because the mean of its divisors is an integer number (42537136).

Almost surely, 2^85074271 is an apocalyptic number.

85074271 is a deficient number, since it is larger than the sum of its proper divisors (1).

85074271 is an equidigital number, since it uses as much as digits as its factorization.

85074271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 85074271 is about 9223.5714883119. The cubic root of 85074271 is about 439.8109914786.

The spelling of 85074271 in words is "eighty-five million, seventy-four thousand, two hundred seventy-one".