85223860 has 12 divisors (see below), whose sum is σ = 178970148. Its totient is φ = 34089536.

The previous prime is 85223843. The next prime is 85223861. The reversal of 85223860 is 6832258.

It can be written as a sum of positive squares in 2 ways, for example, as 41293476 + 43930384 = 6426^2 + 6628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85223861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130577 + ... + 2130616.

It is an arithmetic number, because the mean of its divisors is an integer number (14914179).

Almost surely, 2^85223860 is an apocalyptic number.

It is an amenable number.

85223860 is an abundant number, since it is smaller than the sum of its proper divisors (93746288).

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

85223860 is a wasteful number, since it uses less digits than its factorization.

85223860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261202 (or 4261200 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 85223860 is about 9231.6769874167. The cubic root of 85223860 is about 440.0686187748.

The spelling of 85223860 in words is "eighty-five million, two hundred twenty-three thousand, eight hundred sixty".