85536869 has 4 divisors (see below), whose sum is σ = 93312960. Its totient is φ = 77760780.

The previous prime is 85536827. The next prime is 85536881. The reversal of 85536869 is 96863558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85536869 - 2²⁰ = 84488293 is a prime.

It is a super-2 number, since 2×85536869² = 14633111916646322, 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 (85533869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3888029 + ... + 3888050.

It is an arithmetic number, because the mean of its divisors is an integer number (23328240).

Almost surely, 2^85536869 is an apocalyptic number.

It is an amenable number.

85536869 is a deficient number, since it is larger than the sum of its proper divisors (7776091).

85536869 is a wasteful number, since it uses less digits than its factorization.

85536869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776090.

The product of its digits is 1555200, while the sum is 50.

The square root of 85536869 is about 9248.6144367684. The cubic root of 85536869 is about 440.6067198224.

The spelling of 85536869 in words is "eighty-five million, five hundred thirty-six thousand, eight hundred sixty-nine".