85609230 has 128 divisors (see below), whose sum is σ = 245984256. Its totient is φ = 18662400.

The previous prime is 85609213. The next prime is 85609253. The reversal of 85609230 is 3290658.

It is a happy number.

It is a super-2 number, since 2×85609230² = 14657880522385800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85609191 and 85609200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 525129 + ... + 525291.

It is an arithmetic number, because the mean of its divisors is an integer number (1921752).

Almost surely, 2^85609230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85609230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122992128).

85609230 is an abundant number, since it is smaller than the sum of its proper divisors (160375026).

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

85609230 is a wasteful number, since it uses less digits than its factorization.

85609230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 85609230 is about 9252.5256011534. The cubic root of 85609230 is about 440.7309304188.

Adding to 85609230 its reverse (3290658), we get a palindrome (88899888).

The spelling of 85609230 in words is "eighty-five million, six hundred nine thousand, two hundred thirty".