85163730 has 32 divisors (see below), whose sum is σ = 204681600. Its totient is φ = 22678272.

The previous prime is 85163723. The next prime is 85163731. The reversal of 85163730 is 3736158.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85163691 and 85163700.

It is not an unprimeable number, because it can be changed into a prime (85163731) 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, 26026 + ... + 29114.

It is an arithmetic number, because the mean of its divisors is an integer number (6396300).

Almost surely, 2^85163730 is an apocalyptic number.

85163730 is an abundant number, since it is smaller than the sum of its proper divisors (119517870).

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

85163730 is a wasteful number, since it uses less digits than its factorization.

85163730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 85163730 is about 9228.4196913664. The cubic root of 85163730 is about 439.9650970937.

Adding to 85163730 its reverse (3736158), we get a palindrome (88899888).

It can be divided in two parts, 8516 and 3730, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 85163730 in words is "eighty-five million, one hundred sixty-three thousand, seven hundred thirty".