85667005 has 16 divisors (see below), whose sum is σ = 104562864. Its totient is φ = 67368960.

The previous prime is 85667003. The next prime is 85667069. The reversal of 85667005 is 50076658.

It can be written as a sum of positive squares in 8 ways, for example, as 2893401 + 82773604 = 1701^2 + 9098^2 .

It is not a de Polignac number, because 85667005 - 2¹ = 85667003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85667003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83395 + ... + 84415.

It is an arithmetic number, because the mean of its divisors is an integer number (6535179).

Almost surely, 2^85667005 is an apocalyptic number.

It is an amenable number.

85667005 is a deficient number, since it is larger than the sum of its proper divisors (18895859).

85667005 is a wasteful number, since it uses less digits than its factorization.

85667005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 85667005 is about 9255.6471950912. The cubic root of 85667005 is about 440.8300533114.

The spelling of 85667005 in words is "eighty-five million, six hundred sixty-seven thousand, five".