86685730 has 16 divisors (see below), whose sum is σ = 156590784. Its totient is φ = 34550640.

The previous prime is 86685661. The next prime is 86685751. The reversal of 86685730 is 3758668.

It is a super-3 number, since 3×86685730³ (a number of 25 digits) contains 333 as substring.

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, 12486 + ... + 18145.

It is an arithmetic number, because the mean of its divisors is an integer number (9786924).

Almost surely, 2^86685730 is an apocalyptic number.

86685730 is a deficient number, since it is larger than the sum of its proper divisors (69905054).

86685730 is a wasteful number, since it uses less digits than its factorization.

86685730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30921.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 86685730 is about 9310.5171714572. The cubic root of 86685730 is about 442.5705761646.

The spelling of 86685730 in words is "eighty-six million, six hundred eighty-five thousand, seven hundred thirty".