87566363 has 2 divisors, whose sum is σ = 87566364. Its totient is φ = 87566362.

The previous prime is 87566357. The next prime is 87566389. The reversal of 87566363 is 36366578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87566363 - 2⁸ = 87566107 is a prime.

It is not a weakly prime, because it can be changed into another prime (87566393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43783181 + 43783182.

It is an arithmetic number, because the mean of its divisors is an integer number (43783182).

Almost surely, 2^87566363 is an apocalyptic number.

87566363 is a deficient number, since it is larger than the sum of its proper divisors (1).

87566363 is an equidigital number, since it uses as much as digits as its factorization.

87566363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

The square root of 87566363 is about 9357.6900461599. The cubic root of 87566363 is about 444.0642086482.

The spelling of 87566363 in words is "eighty-seven million, five hundred sixty-six thousand, three hundred sixty-three".