87091343 has 2 divisors, whose sum is σ = 87091344. Its totient is φ = 87091342.

The previous prime is 87091337. The next prime is 87091351. The reversal of 87091343 is 34319078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87091343 - 2¹⁴ = 87074959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87091313) 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 as a sum of consecutive naturals, namely, 43545671 + 43545672.

It is an arithmetic number, because the mean of its divisors is an integer number (43545672).

Almost surely, 2^87091343 is an apocalyptic number.

87091343 is a deficient number, since it is larger than the sum of its proper divisors (1).

87091343 is an equidigital number, since it uses as much as digits as its factorization.

87091343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 87091343 is about 9332.2742672941. The cubic root of 87091343 is about 443.2597827117.

The spelling of 87091343 in words is "eighty-seven million, ninety-one thousand, three hundred forty-three".