85632647 has 2 divisors, whose sum is σ = 85632648. Its totient is φ = 85632646.

The previous prime is 85632607. The next prime is 85632649. The reversal of 85632647 is 74623658.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85632647 - 2⁶ = 85632583 is a prime.

Together with 85632649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85632649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42816323 + 42816324.

It is an arithmetic number, because the mean of its divisors is an integer number (42816324).

Almost surely, 2^85632647 is an apocalyptic number.

85632647 is a deficient number, since it is larger than the sum of its proper divisors (1).

85632647 is an equidigital number, since it uses as much as digits as its factorization.

85632647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 85632647 is about 9253.7909529014. The cubic root of 85632647 is about 440.7711116599.

The spelling of 85632647 in words is "eighty-five million, six hundred thirty-two thousand, six hundred forty-seven".