86320818 has 24 divisors (see below), whose sum is σ = 187200000. Its totient is φ = 28747224.

The previous prime is 86320783. The next prime is 86320837. The reversal of 86320818 is 81802368.

86320818 is a `hidden beast` number, since 8 + 632 + 0 + 8 + 18 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34783 + ... + 37181.

It is an arithmetic number, because the mean of its divisors is an integer number (7800000).

Almost surely, 2^86320818 is an apocalyptic number.

86320818 is an abundant number, since it is smaller than the sum of its proper divisors (100879182).

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

86320818 is a wasteful number, since it uses less digits than its factorization.

86320818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406 (or 4403 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 86320818 is about 9290.8997411446. The cubic root of 86320818 is about 441.9486881051.

The spelling of 86320818 in words is "eighty-six million, three hundred twenty thousand, eight hundred eighteen".