86743291 has 2 divisors, whose sum is σ = 86743292. Its totient is φ = 86743290.

The previous prime is 86743289. The next prime is 86743297. The reversal of 86743291 is 19234768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86743291 - 2¹ = 86743289 is a prime.

Together with 86743289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86743297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43371645 + 43371646.

It is an arithmetic number, because the mean of its divisors is an integer number (43371646).

Almost surely, 2^86743291 is an apocalyptic number.

86743291 is a deficient number, since it is larger than the sum of its proper divisors (1).

86743291 is an equidigital number, since it uses as much as digits as its factorization.

86743291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 86743291 is about 9313.6078401444. The cubic root of 86743291 is about 442.6685129624.

The spelling of 86743291 in words is "eighty-six million, seven hundred forty-three thousand, two hundred ninety-one".