85571741 has 2 divisors, whose sum is σ = 85571742. Its totient is φ = 85571740.

The previous prime is 85571737. The next prime is 85571747. The reversal of 85571741 is 14717558.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58583716 + 26988025 = 7654^2 + 5195^2 .

It is a cyclic number.

It is not a de Polignac number, because 85571741 - 2² = 85571737 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85571695 and 85571704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85571747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42785870 + 42785871.

It is an arithmetic number, because the mean of its divisors is an integer number (42785871).

Almost surely, 2^85571741 is an apocalyptic number.

It is an amenable number.

85571741 is a deficient number, since it is larger than the sum of its proper divisors (1).

85571741 is an equidigital number, since it uses as much as digits as its factorization.

85571741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39200, while the sum is 38.

The square root of 85571741 is about 9250.4995000270. The cubic root of 85571741 is about 440.6665877686. Note that the first 3 decimals are identical.

The spelling of 85571741 in words is "eighty-five million, five hundred seventy-one thousand, seven hundred forty-one".