85649167 has 2 divisors, whose sum is σ = 85649168. Its totient is φ = 85649166.

The previous prime is 85649153. The next prime is 85649197. The reversal of 85649167 is 76194658.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85649167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85649147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42824583 + 42824584.

It is an arithmetic number, because the mean of its divisors is an integer number (42824584).

Almost surely, 2^85649167 is an apocalyptic number.

85649167 is a deficient number, since it is larger than the sum of its proper divisors (1).

85649167 is an equidigital number, since it uses as much as digits as its factorization.

85649167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 85649167 is about 9254.6835170091. The cubic root of 85649167 is about 440.7994539290.

The spelling of 85649167 in words is "eighty-five million, six hundred forty-nine thousand, one hundred sixty-seven".