86823020 has 24 divisors (see below), whose sum is σ = 186570384. Its totient is φ = 33921216.

The previous prime is 86823017. The next prime is 86823031. The reversal of 86823020 is 2032868.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49619 + ... + 51338.

It is an arithmetic number, because the mean of its divisors is an integer number (7773766).

Almost surely, 2^86823020 is an apocalyptic number.

It is an amenable number.

86823020 is an abundant number, since it is smaller than the sum of its proper divisors (99747364).

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

86823020 is a wasteful number, since it uses less digits than its factorization.

86823020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101009 (or 101007 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 86823020 is about 9317.8870995521. The cubic root of 86823020 is about 442.8040958214.

Adding to 86823020 its reverse (2032868), we get a palindrome (88855888).

The spelling of 86823020 in words is "eighty-six million, eight hundred twenty-three thousand, twenty".