85803169 has 9 divisors (see below), whose sum is σ = 87841587. Its totient is φ = 83811624.

The previous prime is 85803167. The next prime is 85803181. The reversal of 85803169 is 96130858.

It is a happy number.

The square root of 85803169 is 9263.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 25150225 + 60652944 = 5015^2 + 7788^2 .

It is not a de Polignac number, because 85803169 - 2¹ = 85803167 is a prime.

It is a super-2 number, since 2×85803169² = 14724367620885122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85803161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 546439 + ... + 546595.

Almost surely, 2^85803169 is an apocalyptic number.

85803169 is the 9263-rd square number.

85803169 is the 4632-nd centered octagonal number.

It is an amenable number.

85803169 is a deficient number, since it is larger than the sum of its proper divisors (2038418).

85803169 is an frugal number, since it uses more digits than its factorization.

85803169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The cubic root of 85803169 is about 441.0634897784.

The spelling of 85803169 in words is "eighty-five million, eight hundred three thousand, one hundred sixty-nine".