86381976 has 64 divisors (see below), whose sum is σ = 224488800. Its totient is φ = 27675648.

The previous prime is 86381963. The next prime is 86381987. The reversal of 86381976 is 67918368.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78486 + ... + 79578.

Almost surely, 2^86381976 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 86381976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112244400).

86381976 is an abundant number, since it is smaller than the sum of its proper divisors (138106824).

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

86381976 is a wasteful number, since it uses less digits than its factorization.

86381976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1224 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 86381976 is about 9294.1904434975. The cubic root of 86381976 is about 442.0530365028.

The spelling of 86381976 in words is "eighty-six million, three hundred eighty-one thousand, nine hundred seventy-six".