85671263 has 4 divisors (see below), whose sum is σ = 87760848. Its totient is φ = 83581680.

The previous prime is 85671253. The next prime is 85671277. The reversal of 85671263 is 36217658.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36217658 = 2 ⋅18108829.

It is a cyclic number.

It is not a de Polignac number, because 85671263 - 2⁶ = 85671199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85671203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044731 + ... + 1044812.

It is an arithmetic number, because the mean of its divisors is an integer number (21940212).

Almost surely, 2^85671263 is an apocalyptic number.

85671263 is a deficient number, since it is larger than the sum of its proper divisors (2089585).

85671263 is a wasteful number, since it uses less digits than its factorization.

85671263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089584.

The product of its digits is 60480, while the sum is 38.

The square root of 85671263 is about 9255.8772139652. The cubic root of 85671263 is about 440.8373568751.

The spelling of 85671263 in words is "eighty-five million, six hundred seventy-one thousand, two hundred sixty-three".