85795609 has 2 divisors, whose sum is σ = 85795610. Its totient is φ = 85795608.

The previous prime is 85795603. The next prime is 85795613. The reversal of 85795609 is 90659758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50808384 + 34987225 = 7128^2 + 5915^2 .

It is a cyclic number.

It is not a de Polignac number, because 85795609 - 2¹³ = 85787417 is a prime.

It is not a weakly prime, because it can be changed into another prime (85795603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42897804 + 42897805.

It is an arithmetic number, because the mean of its divisors is an integer number (42897805).

Almost surely, 2^85795609 is an apocalyptic number.

It is an amenable number.

85795609 is a deficient number, since it is larger than the sum of its proper divisors (1).

85795609 is an equidigital number, since it uses as much as digits as its factorization.

85795609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 85795609 is about 9262.5919158732. The cubic root of 85795609 is about 441.0505355641.

The spelling of 85795609 in words is "eighty-five million, seven hundred ninety-five thousand, six hundred nine".