85435659 has 24 divisors (see below), whose sum is σ = 134888832. Its totient is φ = 51874560.

The previous prime is 85435657. The next prime is 85435661. The reversal of 85435659 is 95653458.

85435659 is a `hidden beast` number, since 8 + 543 + 56 + 59 = 666.

It is an interprime number because it is at equal distance from previous prime (85435657) and next prime (85435661).

It is not a de Polignac number, because 85435659 - 2¹ = 85435657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85435657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4264 + ... + 13749.

It is an arithmetic number, because the mean of its divisors is an integer number (5620368).

Almost surely, 2^85435659 is an apocalyptic number.

85435659 is a deficient number, since it is larger than the sum of its proper divisors (49453173).

85435659 is a wasteful number, since it uses less digits than its factorization.

85435659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18067 (or 18064 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 85435659 is about 9243.1411868477. The cubic root of 85435659 is about 440.4328711788.

The spelling of 85435659 in words is "eighty-five million, four hundred thirty-five thousand, six hundred fifty-nine".