85647011 has 2 divisors, whose sum is σ = 85647012. Its totient is φ = 85647010.

The previous prime is 85647007. The next prime is 85647047. The reversal of 85647011 is 11074658.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85647011 - 2² = 85647007 is a prime.

It is not a weakly prime, because it can be changed into another prime (85647511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42823505 + 42823506.

It is an arithmetic number, because the mean of its divisors is an integer number (42823506).

Almost surely, 2^85647011 is an apocalyptic number.

85647011 is a deficient number, since it is larger than the sum of its proper divisors (1).

85647011 is an equidigital number, since it uses as much as digits as its factorization.

85647011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 85647011 is about 9254.5670347132. The cubic root of 85647011 is about 440.7957552295.

The spelling of 85647011 in words is "eighty-five million, six hundred forty-seven thousand, eleven".