85222930 has 16 divisors (see below), whose sum is σ = 165201624. Its totient is φ = 31466880.

The previous prime is 85222867. The next prime is 85222931. The reversal of 85222930 is 3922258.

It can be written as a sum of positive squares in 4 ways, for example, as 34257609 + 50965321 = 5853^2 + 7139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85222892 and 85222901.

It is not an unprimeable number, because it can be changed into a prime (85222931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327651 + ... + 327910.

Almost surely, 2^85222930 is an apocalyptic number.

85222930 is a deficient number, since it is larger than the sum of its proper divisors (79978694).

85222930 is a wasteful number, since it uses less digits than its factorization.

85222930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655581.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 85222930 is about 9231.6266172327. The cubic root of 85222930 is about 440.0670180286.

The spelling of 85222930 in words is "eighty-five million, two hundred twenty-two thousand, nine hundred thirty".