85659750 has 96 divisors (see below), whose sum is σ = 252753696. Its totient is φ = 20760000.

The previous prime is 85659731. The next prime is 85659767. The reversal of 85659750 is 5795658.

85659750 is a `hidden beast` number, since 8 + 5 + 6 + 597 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 85659696 and 85659705.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 23020 + ... + 26480.

It is an arithmetic number, because the mean of its divisors is an integer number (2632851).

Almost surely, 2^85659750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85659750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126376848).

85659750 is an abundant number, since it is smaller than the sum of its proper divisors (167093946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85659750 is a wasteful number, since it uses less digits than its factorization.

85659750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495 (or 3482 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 85659750 is about 9255.2552639028. The cubic root of 85659750 is about 440.8176085655.

It can be divided in two parts, 856 and 59750, that added together give a palindrome (60606).

The spelling of 85659750 in words is "eighty-five million, six hundred fifty-nine thousand, seven hundred fifty".