85015689 has 12 divisors (see below), whose sum is σ = 124596528. Its totient is φ = 51524440.

The previous prime is 85015669. The next prime is 85015717. The reversal of 85015689 is 98651058.

It is not a de Polignac number, because 85015689 - 2¹² = 85011593 is a prime.

It is a super-2 number, since 2×85015689² = 14455334752289442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85015689.

It is not an unprimeable number, because it can be changed into a prime (85015649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116739 + ... + 117464.

It is an arithmetic number, because the mean of its divisors is an integer number (10383044).

Almost surely, 2^85015689 is an apocalyptic number.

It is an amenable number.

85015689 is a deficient number, since it is larger than the sum of its proper divisors (39580839).

85015689 is a wasteful number, since it uses less digits than its factorization.

85015689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234228 (or 234217 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 85015689 is about 9220.3952735227. The cubic root of 85015689 is about 439.7100172617.

The spelling of 85015689 in words is "eighty-five million, fifteen thousand, six hundred eighty-nine".