86471331 has 8 divisors (see below), whose sum is σ = 118411344. Its totient is φ = 56089440.

The previous prime is 86471327. The next prime is 86471351. The reversal of 86471331 is 13317468.

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

It is not a de Polignac number, because 86471331 - 2² = 86471327 is a prime.

It is a super-2 number, since 2×86471331² = 14954582169823122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86471292 and 86471301.

It is not an unprimeable number, because it can be changed into a prime (86471311) 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, 389400 + ... + 389621.

It is an arithmetic number, because the mean of its divisors is an integer number (14801418).

Almost surely, 2^86471331 is an apocalyptic number.

86471331 is a deficient number, since it is larger than the sum of its proper divisors (31940013).

86471331 is a wasteful number, since it uses less digits than its factorization.

86471331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779061.

The product of its digits is 12096, while the sum is 33.

The square root of 86471331 is about 9298.9962361537. The cubic root of 86471331 is about 442.2054063953.

Adding to 86471331 its reverse (13317468), we get a palindrome (99788799).

The spelling of 86471331 in words is "eighty-six million, four hundred seventy-one thousand, three hundred thirty-one".