85741577 has 2 divisors, whose sum is σ = 85741578. Its totient is φ = 85741576.

The previous prime is 85741553. The next prime is 85741589. The reversal of 85741577 is 77514758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77510416 + 8231161 = 8804^2 + 2869^2 .

It is a cyclic number.

It is not a de Polignac number, because 85741577 - 2²⁰ = 84693001 is a prime.

It is not a weakly prime, because it can be changed into another prime (85741597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42870788 + 42870789.

It is an arithmetic number, because the mean of its divisors is an integer number (42870789).

Almost surely, 2^85741577 is an apocalyptic number.

It is an amenable number.

85741577 is a deficient number, since it is larger than the sum of its proper divisors (1).

85741577 is an equidigital number, since it uses as much as digits as its factorization.

85741577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274400, while the sum is 44.

The square root of 85741577 is about 9259.6747783062. The cubic root of 85741577 is about 440.9579284666.

The spelling of 85741577 in words is "eighty-five million, seven hundred forty-one thousand, five hundred seventy-seven".