86671291 has 8 divisors (see below), whose sum is σ = 103359744. Its totient is φ = 71059560.

The previous prime is 86671283. The next prime is 86671309. The reversal of 86671291 is 19217668.

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 86671291 - 2³ = 86671283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86671261) 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, 269005 + ... + 269326.

It is an arithmetic number, because the mean of its divisors is an integer number (12919968).

Almost surely, 2^86671291 is an apocalyptic number.

86671291 is a deficient number, since it is larger than the sum of its proper divisors (16688453).

86671291 is a wasteful number, since it uses less digits than its factorization.

86671291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538361.

The product of its digits is 36288, while the sum is 40.

The square root of 86671291 is about 9309.7417257408. The cubic root of 86671291 is about 442.5460022184.

The spelling of 86671291 in words is "eighty-six million, six hundred seventy-one thousand, two hundred ninety-one".