86689140 has 24 divisors (see below), whose sum is σ = 242729760. Its totient is φ = 23117088.

The previous prime is 86689133. The next prime is 86689151. The reversal of 86689140 is 4198668.

It is a junction number, because it is equal to n+sod(n) for n = 86689092 and 86689101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722350 + ... + 722469.

It is an arithmetic number, because the mean of its divisors is an integer number (10113740).

Almost surely, 2^86689140 is an apocalyptic number.

It is an amenable number.

86689140 is an abundant number, since it is smaller than the sum of its proper divisors (156040620).

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

86689140 is a wasteful number, since it uses less digits than its factorization.

86689140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444831 (or 1444829 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 86689140 is about 9310.7002958961. The cubic root of 86689140 is about 442.5763792953.

The spelling of 86689140 in words is "eighty-six million, six hundred eighty-nine thousand, one hundred forty".