86871380 has 12 divisors (see below), whose sum is σ = 182429940. Its totient is φ = 34748544.

The previous prime is 86871373. The next prime is 86871383. The reversal of 86871380 is 8317868.

It can be written as a sum of positive squares in 2 ways, for example, as 49758916 + 37112464 = 7054^2 + 6092^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86871383) 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 3 ways as a sum of consecutive naturals, for example, 2171765 + ... + 2171804.

It is an arithmetic number, because the mean of its divisors is an integer number (15202495).

Almost surely, 2^86871380 is an apocalyptic number.

It is an amenable number.

86871380 is an abundant number, since it is smaller than the sum of its proper divisors (95558560).

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

86871380 is a wasteful number, since it uses less digits than its factorization.

86871380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343578 (or 4343576 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 86871380 is about 9320.4817472060. The cubic root of 86871380 is about 442.8862938048.

The spelling of 86871380 in words is "eighty-six million, eight hundred seventy-one thousand, three hundred eighty".