86881439 has 8 divisors (see below), whose sum is σ = 89420688. Its totient is φ = 84352320.

The previous prime is 86881429. The next prime is 86881447. The reversal of 86881439 is 93418868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86881439 - 2⁴ = 86881423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86881393 and 86881402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86881429) 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, 17024 + ... + 21530.

It is an arithmetic number, because the mean of its divisors is an integer number (11177586).

Almost surely, 2^86881439 is an apocalyptic number.

86881439 is a deficient number, since it is larger than the sum of its proper divisors (2539249).

86881439 is a wasteful number, since it uses less digits than its factorization.

86881439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065.

The product of its digits is 331776, while the sum is 47.

The square root of 86881439 is about 9321.0213496161. The cubic root of 86881439 is about 442.9033873566.

The spelling of 86881439 in words is "eighty-six million, eight hundred eighty-one thousand, four hundred thirty-nine".