86459640 has 32 divisors (see below), whose sum is σ = 259379280. Its totient is φ = 23055872.

The previous prime is 86459623. The next prime is 86459641. The reversal of 86459640 is 4695468.

It is a junction number, because it is equal to n+sod(n) for n = 86459592 and 86459601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86459641) by changing a digit.

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, 360129 + ... + 360368.

Almost surely, 2^86459640 is an apocalyptic number.

It is an amenable number.

86459640 is an abundant number, since it is smaller than the sum of its proper divisors (172919640).

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

86459640 is a wasteful number, since it uses less digits than its factorization.

86459640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720511 (or 720507 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 86459640 is about 9298.3675986702. The cubic root of 86459640 is about 442.1854766438.

The spelling of 86459640 in words is "eighty-six million, four hundred fifty-nine thousand, six hundred forty".