87827447 has 2 divisors, whose sum is σ = 87827448. Its totient is φ = 87827446.

The previous prime is 87827417. The next prime is 87827449. The reversal of 87827447 is 74472878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87827447 - 2⁸ = 87827191 is a prime.

Together with 87827449, 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 (87827449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43913723 + 43913724.

It is an arithmetic number, because the mean of its divisors is an integer number (43913724).

Almost surely, 2^87827447 is an apocalyptic number.

87827447 is a deficient number, since it is larger than the sum of its proper divisors (1).

87827447 is an equidigital number, since it uses as much as digits as its factorization.

87827447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 702464, while the sum is 47.

The square root of 87827447 is about 9371.6299009297. The cubic root of 87827447 is about 444.5051048291.

The spelling of 87827447 in words is "eighty-seven million, eight hundred twenty-seven thousand, four hundred forty-seven".