85885361 has 4 divisors (see below), whose sum is σ = 85905252. Its totient is φ = 85865472.

The previous prime is 85885337. The next prime is 85885391. The reversal of 85885361 is 16358858.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49210225 + 36675136 = 7015^2 + 6056^2 .

It is a cyclic number.

It is not a de Polignac number, because 85885361 - 2²⁶ = 18776497 is a prime.

It is a super-4 number, since 4×85885361⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85885391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440 + ... + 13113.

It is an arithmetic number, because the mean of its divisors is an integer number (21476313).

Almost surely, 2^85885361 is an apocalyptic number.

It is an amenable number.

85885361 is a deficient number, since it is larger than the sum of its proper divisors (19891).

85885361 is a wasteful number, since it uses less digits than its factorization.

85885361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19890.

The product of its digits is 230400, while the sum is 44.

The square root of 85885361 is about 9267.4355136683. The cubic root of 85885361 is about 441.2042783668.

The spelling of 85885361 in words is "eighty-five million, eight hundred eighty-five thousand, three hundred sixty-one".