85835653 has 2 divisors, whose sum is σ = 85835654. Its totient is φ = 85835652.

The previous prime is 85835641. The next prime is 85835657. The reversal of 85835653 is 35653858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46485124 + 39350529 = 6818^2 + 6273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85835653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85835657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42917826 + 42917827.

It is an arithmetic number, because the mean of its divisors is an integer number (42917827).

Almost surely, 2^85835653 is an apocalyptic number.

It is an amenable number.

85835653 is a deficient number, since it is larger than the sum of its proper divisors (1).

85835653 is an equidigital number, since it uses as much as digits as its factorization.

85835653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 43.

The square root of 85835653 is about 9264.7532616902. The cubic root of 85835653 is about 441.1191431180.

The spelling of 85835653 in words is "eighty-five million, eight hundred thirty-five thousand, six hundred fifty-three".