85817241 has 12 divisors (see below), whose sum is σ = 131250132. Its totient is φ = 53846016.

The previous prime is 85817239. The next prime is 85817273. The reversal of 85817241 is 14271858.

85817241 is a `hidden beast` number, since 8 + 581 + 72 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51840000 + 33977241 = 7200^2 + 5829^2 .

It is not a de Polignac number, because 85817241 - 2¹ = 85817239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85817196 and 85817205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85817201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280296 + ... + 280601.

It is an arithmetic number, because the mean of its divisors is an integer number (10937511).

Almost surely, 2^85817241 is an apocalyptic number.

It is an amenable number.

85817241 is a deficient number, since it is larger than the sum of its proper divisors (45432891).

85817241 is a wasteful number, since it uses less digits than its factorization.

85817241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560920 (or 560917 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 85817241 is about 9263.7595499883. The cubic root of 85817241 is about 441.0876004114.

The spelling of 85817241 in words is "eighty-five million, eight hundred seventeen thousand, two hundred forty-one".