86660320 has 48 divisors (see below), whose sum is σ = 213645600. Its totient is φ = 33155584.

The previous prime is 86660303. The next prime is 86660333. The reversal of 86660320 is 2306668.

It is a super-2 number, since 2×86660320² = 15020022125004800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8095 + ... + 15454.

It is an arithmetic number, because the mean of its divisors is an integer number (4450950).

Almost surely, 2^86660320 is an apocalyptic number.

86660320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86660320 is an abundant number, since it is smaller than the sum of its proper divisors (126985280).

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

86660320 is a wasteful number, since it uses less digits than its factorization.

86660320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23587 (or 23579 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 86660320 is about 9309.1524855918. The cubic root of 86660320 is about 442.5273286876.

Adding to 86660320 its reverse (2306668), we get a palindrome (88966988).

The spelling of 86660320 in words is "eighty-six million, six hundred sixty thousand, three hundred twenty".