87834287 has 2 divisors, whose sum is σ = 87834288. Its totient is φ = 87834286.

The previous prime is 87834277. The next prime is 87834289. The reversal of 87834287 is 78243878.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87834287 - 2⁸ = 87834031 is a prime.

Together with 87834289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87834289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43917143 + 43917144.

It is an arithmetic number, because the mean of its divisors is an integer number (43917144).

Almost surely, 2^87834287 is an apocalyptic number.

87834287 is a deficient number, since it is larger than the sum of its proper divisors (1).

87834287 is an equidigital number, since it uses as much as digits as its factorization.

87834287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 602112, while the sum is 47.

The square root of 87834287 is about 9371.9948250092. The cubic root of 87834287 is about 444.5166438795.

The spelling of 87834287 in words is "eighty-seven million, eight hundred thirty-four thousand, two hundred eighty-seven".