86078412 has 144 divisors (see below), whose sum is σ = 267950592. Its totient is φ = 22740480.

The previous prime is 86078411. The next prime is 86078431. The reversal of 86078412 is 21487068.

86078412 is a `hidden beast` number, since 8 + 607 + 8 + 41 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (86078411) 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 47 ways as a sum of consecutive naturals, for example, 304023 + ... + 304305.

It is an arithmetic number, because the mean of its divisors is an integer number (1860768).

Almost surely, 2^86078412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86078412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133975296).

86078412 is an abundant number, since it is smaller than the sum of its proper divisors (181872180).

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

86078412 is a wasteful number, since it uses less digits than its factorization.

86078412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 86078412 is about 9277.8452239731. The cubic root of 86078412 is about 441.5346070269.

The spelling of 86078412 in words is "eighty-six million, seventy-eight thousand, four hundred twelve".