85167847 has 2 divisors, whose sum is σ = 85167848. Its totient is φ = 85167846.

The previous prime is 85167839. The next prime is 85167871. The reversal of 85167847 is 74876158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85167847 - 2³ = 85167839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85167797 and 85167806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85167347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42583923 + 42583924.

It is an arithmetic number, because the mean of its divisors is an integer number (42583924).

Almost surely, 2^85167847 is an apocalyptic number.

85167847 is a deficient number, since it is larger than the sum of its proper divisors (1).

85167847 is an equidigital number, since it uses as much as digits as its factorization.

85167847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 46.

The square root of 85167847 is about 9228.6427496138. The cubic root of 85167847 is about 439.9721866028.

The spelling of 85167847 in words is "eighty-five million, one hundred sixty-seven thousand, eight hundred forty-seven".