87347287 has 2 divisors, whose sum is σ = 87347288. Its totient is φ = 87347286.

The previous prime is 87347279. The next prime is 87347311. The reversal of 87347287 is 78274378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87347287 - 2³ = 87347279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87347257) 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, 43673643 + 43673644.

It is an arithmetic number, because the mean of its divisors is an integer number (43673644).

Almost surely, 2^87347287 is an apocalyptic number.

87347287 is a deficient number, since it is larger than the sum of its proper divisors (1).

87347287 is an equidigital number, since it uses as much as digits as its factorization.

87347287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 526848, while the sum is 46.

The square root of 87347287 is about 9345.9770489767. The cubic root of 87347287 is about 443.6935752630.

The spelling of 87347287 in words is "eighty-seven million, three hundred forty-seven thousand, two hundred eighty-seven".