85227820 has 12 divisors (see below), whose sum is σ = 178978464. Its totient is φ = 34091120.

The previous prime is 85227767. The next prime is 85227827. The reversal of 85227820 is 2872258.

It is not an unprimeable number, because it can be changed into a prime (85227827) 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, 2130676 + ... + 2130715.

It is an arithmetic number, because the mean of its divisors is an integer number (14914872).

Almost surely, 2^85227820 is an apocalyptic number.

It is an amenable number.

85227820 is an abundant number, since it is smaller than the sum of its proper divisors (93750644).

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

85227820 is a wasteful number, since it uses less digits than its factorization.

85227820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261400 (or 4261398 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 85227820 is about 9231.8914638334. The cubic root of 85227820 is about 440.0754347249.

The spelling of 85227820 in words is "eighty-five million, two hundred twenty-seven thousand, eight hundred twenty".