86030820 has 72 divisors (see below), whose sum is σ = 269975160. Its totient is φ = 22149120.

The previous prime is 86030731. The next prime is 86030827. The reversal of 86030820 is 2803068.

It can be written as a sum of positive squares in 4 ways, for example, as 6749604 + 79281216 = 2598^2 + 8904^2 .

It is not an unprimeable number, because it can be changed into a prime (86030827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3021 + ... + 13460.

It is an arithmetic number, because the mean of its divisors is an integer number (3749655).

Almost surely, 2^86030820 is an apocalyptic number.

It is an amenable number.

86030820 is an abundant number, since it is smaller than the sum of its proper divisors (183944340).

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

86030820 is a wasteful number, since it uses less digits than its factorization.

86030820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16525 (or 16520 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 86030820 is about 9275.2800496804. The cubic root of 86030820 is about 441.4532184866.

Adding to 86030820 its reverse (2803068), we get a palindrome (88833888).

The spelling of 86030820 in words is "eighty-six million, thirty thousand, eight hundred twenty".