85847123 has 2 divisors, whose sum is σ = 85847124. Its totient is φ = 85847122.

The previous prime is 85847107. The next prime is 85847137. The reversal of 85847123 is 32174858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85847123 - 2⁴ = 85847107 is a prime.

It is not a weakly prime, because it can be changed into another prime (85847323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42923561 + 42923562.

It is an arithmetic number, because the mean of its divisors is an integer number (42923562).

Almost surely, 2^85847123 is an apocalyptic number.

85847123 is a deficient number, since it is larger than the sum of its proper divisors (1).

85847123 is an equidigital number, since it uses as much as digits as its factorization.

85847123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 85847123 is about 9265.3722537198. The cubic root of 85847123 is about 441.1387907860.

The spelling of 85847123 in words is "eighty-five million, eight hundred forty-seven thousand, one hundred twenty-three".