86134840 has 32 divisors (see below), whose sum is σ = 211422960. Its totient is φ = 31321600.

The previous prime is 86134831. The next prime is 86134849. The reversal of 86134840 is 4843168.

It is an interprime number because it is at equal distance from previous prime (86134831) and next prime (86134849).

It is a junction number, because it is equal to n+sod(n) for n = 86134796 and 86134805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86134849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97441 + ... + 98320.

Almost surely, 2^86134840 is an apocalyptic number.

It is an amenable number.

86134840 is an abundant number, since it is smaller than the sum of its proper divisors (125288120).

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

86134840 is a wasteful number, since it uses less digits than its factorization.

86134840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195783 (or 195779 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 86134840 is about 9280.8857335925. The cubic root of 86134840 is about 441.6310674206.

The spelling of 86134840 in words is "eighty-six million, one hundred thirty-four thousand, eight hundred forty".