87396563 has 2 divisors, whose sum is σ = 87396564. Its totient is φ = 87396562.

The previous prime is 87396557. The next prime is 87396577. The reversal of 87396563 is 36569378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87396563 - 2⁶ = 87396499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87396163) 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, 43698281 + 43698282.

It is an arithmetic number, because the mean of its divisors is an integer number (43698282).

Almost surely, 2^87396563 is an apocalyptic number.

87396563 is a deficient number, since it is larger than the sum of its proper divisors (1).

87396563 is an equidigital number, since it uses as much as digits as its factorization.

87396563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 47.

The square root of 87396563 is about 9348.6128917610. The cubic root of 87396563 is about 443.7769945094.

The spelling of 87396563 in words is "eighty-seven million, three hundred ninety-six thousand, five hundred sixty-three".