86381751 has 4 divisors (see below), whose sum is σ = 115175672. Its totient is φ = 57587832.

The previous prime is 86381677. The next prime is 86381753. The reversal of 86381751 is 15718368.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86381751 - 2⁷ = 86381623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86381753) 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, 14396956 + ... + 14396961.

It is an arithmetic number, because the mean of its divisors is an integer number (28793918).

Almost surely, 2^86381751 is an apocalyptic number.

86381751 is a deficient number, since it is larger than the sum of its proper divisors (28793921).

86381751 is a wasteful number, since it uses less digits than its factorization.

86381751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28793920.

The product of its digits is 40320, while the sum is 39.

The square root of 86381751 is about 9294.1783391540. The cubic root of 86381751 is about 442.0526526958.

The spelling of 86381751 in words is "eighty-six million, three hundred eighty-one thousand, seven hundred fifty-one".