85941869 has 12 divisors (see below), whose sum is σ = 96759516. Its totient is φ = 75875712.

The previous prime is 85941857. The next prime is 85941901. The reversal of 85941869 is 96814958.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27984100 + 57957769 = 5290^2 + 7613^2 .

It is not a de Polignac number, because 85941869 - 2⁴ = 85941853 is a prime.

It is a super-2 number, since 2×85941869² = 14772009694426322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85941829) 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 11 ways as a sum of consecutive naturals, for example, 629 + ... + 13125.

It is an arithmetic number, because the mean of its divisors is an integer number (8063293).

Almost surely, 2^85941869 is an apocalyptic number.

It is an amenable number.

85941869 is a deficient number, since it is larger than the sum of its proper divisors (10817647).

85941869 is a wasteful number, since it uses less digits than its factorization.

85941869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556 (or 12533 counting only the distinct ones).

The product of its digits is 622080, while the sum is 50.

The square root of 85941869 is about 9270.4837522106. The cubic root of 85941869 is about 441.3010201366.

The spelling of 85941869 in words is "eighty-five million, nine hundred forty-one thousand, eight hundred sixty-nine".