85852631 has 2 divisors, whose sum is σ = 85852632. Its totient is φ = 85852630.

The previous prime is 85852603. The next prime is 85852687. The reversal of 85852631 is 13625858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85852631 - 2¹⁸ = 85590487 is a prime.

It is a super-2 number, since 2×85852631² = 14741348499244322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85852231) 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, 42926315 + 42926316.

It is an arithmetic number, because the mean of its divisors is an integer number (42926316).

Almost surely, 2^85852631 is an apocalyptic number.

85852631 is a deficient number, since it is larger than the sum of its proper divisors (1).

85852631 is an equidigital number, since it uses as much as digits as its factorization.

85852631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 38.

The square root of 85852631 is about 9265.6694847161. The cubic root of 85852631 is about 441.1482251557.

The spelling of 85852631 in words is "eighty-five million, eight hundred fifty-two thousand, six hundred thirty-one".