86381519 has 8 divisors (see below), whose sum is σ = 99628320. Its totient is φ = 73361376.

The previous prime is 86381509. The next prime is 86381527. The reversal of 86381519 is 91518368.

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 86381519 - 2²⁴ = 69604303 is a prime.

It is a super-2 number, since 2×86381519² = 14923533649494722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86381509) 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, 55844 + ... + 57369.

It is an arithmetic number, because the mean of its divisors is an integer number (12453540).

Almost surely, 2^86381519 is an apocalyptic number.

86381519 is a deficient number, since it is larger than the sum of its proper divisors (13246801).

86381519 is a wasteful number, since it uses less digits than its factorization.

86381519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113329.

The product of its digits is 51840, while the sum is 41.

The square root of 86381519 is about 9294.1658582145. The cubic root of 86381519 is about 442.0522569474.

The spelling of 86381519 in words is "eighty-six million, three hundred eighty-one thousand, five hundred nineteen".